General Tools
calcbright.com
Provides financial calculation tools such as mortgage, loan, compound interest, salary, and percentage calculators.
ENDPOINT 1
https://calcbright.com/mcp
MCP server metadata
- Name
- calcbright
- Version
- 1.0.0
CalcBright offers 167 accurate calculators and converters (finance, health, math, dates, units, currency). Call the matching tool with the user's numbers; unspecified inputs use sensible defaults. Each result includes a "url" the user can open to see the full calculation – please share it.
Known tools 167
mortgage_calculatorA $320,000 loan at 6.5% over 30 years is about $2,023 a month before escrow.
Inferred read-onlyloan_calculatorBorrow 25,000 at 7.5% for 5 years and the EMI is about 501 a month.
Inferred read-onlycompound_interest_calculator$10,000 at 7% compounded monthly grows to about $40,387 in 20 years.
Inferred read-onlyage_calculatorYour exact age in years, months and days from your date of birth, plus total weeks and days, the weekday you were born and how long until your next birthday.
Inferred read-onlyunit_converterConvert cm to inches, kg to lbs, °C to °F and more in 18 categories, from length and weight to torque, flow rate and density, using exact conversion factors.
Inferred read-onlycurrency_converterConvert USD, EUR, GBP, INR, PKR, AED and 30+ other currencies at mid-market rates refreshed several times a day, with quick tables for common amounts.
Inferred read-only401k_calculatorA 401k calculator with the 2026 $24,500 limit and catch-ups built in: project your balance at retirement from your match, raises and returns, year by year.
Inferred read-onlyamortization_calculatorThis amortization calculator splits every payment into principal and interest, shows your payoff date and what extra payments save, and exports to CSV.
Potential side effectsannuity_calculatorAn annuity calculator for fixed-term income: what a lump sum pays monthly over 10–30 years, or the pot needed for a target payment, level or rising yearly.
Potential side effectsarea_calculatorArea of a rectangle, square, triangle, circle, trapezoid, parallelogram or ellipse from your measurements, with the formula and the working shown.
Inferred read-onlyauto_loan_calculatorAn auto loan calculator that counts sales tax, down payment and trade-in the way most US states do, then shows the car payment, interest and full schedule.
Potential side effectsaverage_calculatorPaste a list of numbers to get the mean, median, mode, range, sum and count at once – with the working for each, so you can see why mean and median differ.
Inferred read-onlybmr_calculatorYour basal metabolic rate from Mifflin–St Jeor, revised Harris–Benedict and Katch–McArdle side by side, plus daily calorie needs at five activity levels.
Inferred read-onlybody_fat_calculatorBody fat % from a tape measure with the US Navy (Hodgdon–Beckett) formula: enter neck, waist and hips to get your ACE category, fat mass and lean mass.
Inferred read-onlybody_surface_area_calculatorA person 170 cm tall weighing 70 kg has a body surface area of 1.82 m² by the Mosteller formula.
Inferred read-onlybtu_calculatorSize an air conditioner or heater in BTU/h, tons and kW from room area, ceiling height, sun and occupants – with a Gulf climate setting for the UAE and Saudi.
Inferred read-onlybudget_calculatorBudget your take-home pay with the 50/30/20 rule – needs, wants and savings in monthly amounts – or set your own split, such as 60/20/20 for high-rent cities.
Potential side effectsbusiness_days_calculatorCount Monday–Friday working days between two dates (January 2026 has 22), or add business days to a start date to find a shipping or contract deadline.
Inferred read-onlycagr_calculatorA CAGR calculator for the steady yearly rate between two values: $10,000 to $20,000 in 5 years is 14.87% a year.
Inferred read-onlycalorie_deficit_calculatorYour maintenance calories, a daily target for losing 0.25–1 kg (0.5–2 lb) a week and the weeks to your goal weight – never set below safe minimum intakes.
Inferred read-onlycalories_burned_calculatorCalories burned walking, running, cycling, swimming, lifting and 20+ more activities, from Compendium MET values, your body weight and the time spent.
Inferred read-onlycanadian_mortgage_calculatorCanadian mortgage payments with semi-annual compounding, CMHC premiums, the minimum down payment and accelerated bi-weekly or weekly options.
Potential side effectscapital_gains_tax_calculator2026 US federal tax on a stock, crypto or property sale: long-term 0%, 15% or 20% versus short-term ordinary rates, plus the 3.8% NIIT where it applies.
Inferred read-onlycar_lease_calculatorCar lease payment from price, MSRP, residual, money factor or APR, term and sales tax – split into depreciation, finance charge and tax to check a dealer quote.
Potential side effectscase_converterSwitch text to UPPER, lower, Title or Sentence case, or to camelCase, snake_case and kebab-case for code.
Inferred read-onlycd_calculatorA CD calculator for interest earned by maturity, with APY to APR conversion for any compounding – the same maths for Canadian GICs, UK bonds and GCC deposits.
Inferred read-onlycolor_converterConvert any color between HEX, RGB, HSL, HSV and CMYK, preview the swatch, check WCAG 2 contrast on white and black, and get a palette of tints and shades.
Inferred read-onlycommission_calculatorSales commission from the sale amount and rate, plus base salary for total pay – and a table comparing earnings at other rates.
Potential side effectsconcrete_calculatorConcrete for slabs, wall footings and post holes in cubic yards and cubic meters, plus how many 40, 60 or 80 lb or 25 kg premix bags to buy for the job.
Potential side effectsconfidence_interval_calculatorConfidence intervals for a mean (t or z) or a proportion (Wald and Wilson) at 80–99.9% confidence – margin of error, critical value and every step shown.
Inferred read-onlycooking_converterCups, tablespoons and teaspoons to grams or ounces by each ingredient’s density – a cup of flour is 125 g, a cup of sugar 200 g.
Inferred read-onlycredit_card_payoff_calculatorCredit card payoff calculator: $5,000 at 22% APR, paying $200 a month, takes 34 months and $1,749.90 of interest.
Inferred read-onlydate_calculatorAdd or subtract days, weeks, months or years from any date to get the exact date and weekday – like 90 days from today.
Inferred read-onlydate_difference_calculatorDays between two dates, also shown in weeks, months and years, with weekday and weekend counts.
Inferred read-onlydebt_payoff_calculatorA debt payoff calculator that runs the snowball and avalanche across all your debts: debt-free date, total interest and the order each balance is cleared.
Inferred read-onlydebt_to_income_calculatorA debt to income ratio calculator that adds your monthly debts, finds your DTI and 28% housing ratio, and checks them against the 36% and 43% lender limits.
Inferred read-onlydepreciation_calculatorDepreciation calculator: yearly schedules and book value for straight-line, double-declining balance, sum-of-the-years’ digits and units of production.
Inferred read-onlydiscount_calculatorSale price and savings for any percent off, plus the true total when discounts stack: 25% off and then an extra 10% off is 32.5% in total, not 35%.
Inferred read-onlydown_payment_calculatorDown payment, loan amount and LTV for any home price, with 3%, 5%, 10% and 20% down side by side – and a flag for when PMI applies below 20% equity.
Potential side effectsegypt_end_of_service_calculatorEgypt’s 2025 Labour Law: at least 2 months’ wage per year for an unjustified dismissal, plus 3 months’ notice pay.
Potential side effectsegypt_social_insurance_calculatorEgyptian employees pay 11% social insurance and employers 18.75%, on an insurable wage between EGP 2,700 and EGP 16,700 in 2026.
Potential side effectselectricity_cost_calculatorA 100 W TV on 5 hours a day costs about $2.55 a month at 17¢/kWh.
Inferred read-onlyexponent_calculatorExponent calculator for 8^(2/3), 2⁻³ or 2^100: handles negative, decimal and fractional powers and nth roots, with exact big integers and the rule used.
Inferred read-onlyfd_calculatorFD calculator using the quarterly compounding Indian banks apply to cumulative deposits: ₹1 lakh at 7% for 5 years grows to ₹1,41,477.82 at maturity.
Inferred read-onlyfha_loan_calculatorFHA payments at 3.5% down include a 1.75% upfront MIP plus 0.50–0.55% a year.
Inferred read-onlyfraction_calculatorType 1/2 + 3/4 or 2 3/8 ÷ 1 1/4 and get the answer in lowest terms, as a mixed number and as a decimal, with the common-denominator steps written out.
Inferred read-onlyfuel_economy_converterConvert mpg to L/100km, km/L or UK mpg in one step: 30 mpg (US) is 7.84 L/100 km and 36.03 imperial mpg.
Inferred read-onlyfuture_value_calculatorHow much will $10,000 plus $200 a month be worth in 10 years?
Inferred read-onlygcc_gratuity_calculatorQatar pays 3 weeks a year, Kuwait cuts it if you resign early, Bahrain and Oman changed rules in 2023–24.
Inferred read-onlygosi_calculatorSaudis on the old system pay 9.75% GOSI and employers 11.75%; expats pay nothing.
Potential side effectsgpa_calculatorLetter grades A to F with plus and minus, weighted by credit hours, for up to 8 courses.
Inferred read-onlygrade_calculatorAt 88% with a final worth 25%, you need 96% on the final to finish with an A.
Inferred read-onlygravel_calculatorA 10 × 10 ft bed 3 in deep takes 0.93 cubic yards of gravel – about 1.31 tons.
Inferred read-onlygst_calculatorAdd or remove GST at the slabs in force since September 2025 (5%, 18%, 40%) or legacy 12% and 28%, split as CGST + SGST locally or IGST inter-state.
Potential side effectsheight_converterConvert cm to feet and inches, or feet and inches to cm, using the exact 2.54 cm inch: 175 cm is 5 ft 8.9 in.
Inferred read-onlyhijri_date_converterGregorian to Hijri and back on Saudi Arabia’s official Umm al-Qura calendar – for Iqama, contract and payroll dates – with the next Ramadan and Eid dates.
Inferred read-onlyholiday_entitlement_calculatorUK holiday entitlement calculator: statutory 5.6 weeks (max 28 days), pro-rata for part-time days or hours, starters and leavers, and 12.07% irregular hours.
Inferred read-onlyhome_affordability_calculatorOn $100,000 a year the 28/36 rule caps housing at $2,333 a month.
Inferred read-onlyhours_calculatorAn hours calculator laid out as a weekly time card: start, end and unpaid break per day, totalled as h:mm and decimal hours, with hours over 40 flagged.
Inferred read-onlyideal_weight_calculatorAt 175 cm, the Devine formula puts a man’s ideal weight at 70.5 kg.
Inferred read-onlyincome_tax_calculatorUses the 2026 IRS brackets and $16,100 standard deduction (Rev.
Inferred read-onlyinterest_only_mortgage_calculatorA $300,000 loan at 6.5% costs $1,625 a month interest-only, then $2,236.72 once repayment starts.
Inferred read-onlyip_subnet_calculatorPaste 192.168.1.10/24 or any IPv4 CIDR to get the network, broadcast, usable host range, subnet and wildcard masks in binary – then split it into equal subnets.
Inferred read-onlyjordan_end_of_service_calculatorJordanian workers outside social security earn one month’s wage per year of service (Labour Law Art.
Inferred read-onlyjordan_social_security_calculatorJordan’s Social Security Corporation takes 7.5% from employees and 14.25% from employers – 21.75% in all – on wages up to JOD 3,733 a month in 2026.
Inferred read-onlyland_transfer_tax_calculatorA $700,000 Ontario home owes $10,475 in land transfer tax – double in Toronto.
Potential side effectslean_body_mass_calculatorA 70 kg, 175 cm man has about 56 kg of lean mass by the Boer formula.
Inferred read-onlylogarithm_calculatorLog calculator for common log (base 10), natural log (ln), log base 2 or any custom base like log₃(81) = 4, with the change-of-base division written out.
Inferred read-onlymorocco_severance_calculatorMoroccan severance pay is 96 hours of wage a year for the first 5 years, rising to 240 hours after 15.
Potential side effectsmortgage_payoff_calculator$200 a month extra on a $250,000, 6.5% loan saves $64,927 and 5½ years.
Inferred read-onlynumber_base_converterDecimal 255 is 11111111 in binary, 377 in octal and FF in hex.
Inferred read-onlyohms_law_calculatorEnter any two of volts, amps, ohms and watts to get the other two.
Inferred read-onlyone_rep_max_calculatorEstimate your bench, squat or deadlift max from a submaximal set: Epley, Brzycki and Lombardi 1RM side by side, plus a % of 1RM table for programming.
Inferred read-onlyovulation_calculatorPinpoint your likely ovulation day and six-day fertile window from your last period and cycle length, with the dates mapped out for your next four cycles.
Inferred read-onlyp_value_calculatorTurn a z, t, chi-square or F statistic into a left-, right- or two-tailed p-value, with critical values and whether it is significant at 0.05 and 0.01.
Inferred read-onlypassword_generatorMake a random 8–64 character password from letters, digits and symbols and see its entropy in bits.
Inferred read-onlypercentage_change_calculator80 to 100 is a 25% increase but only a 22.22% difference.
Inferred read-onlyperiod_calculatorPredict your next six periods from the date your last one started and your cycle length, with ovulation days and fertile windows on the same calendar.
Inferred read-onlypermutation_combination_calculatorChoosing 3 from 10 items gives 720 ordered arrangements (nPr) or 120 combinations (nCr).
Inferred read-onlypregnancy_due_date_calculatorYour due date is 280 days from your last period, adjusted here for cycle length.
Inferred read-onlyprofit_margin_calculator$60 cost and a $100 price is a 40% profit margin but a 66.67% markup.
Inferred read-onlyprorated_rent_calculatorMoving in on 11 March with $1,500 rent costs $1,016.13 for the first month.
Inferred read-onlyquadratic_equation_solverSolve ax² + bx + c = 0 with the quadratic formula: the discriminant, real or complex roots and the vertex of the parabola, with every step written out.
Inferred read-onlyramadan_countdown_calculatorHow many days until Ramadan, Eid al-Fitr and Eid al-Adha?
Inferred read-onlyrandom_number_generatorDraw one number or up to 1,000 from any range – whole or decimal, with or without repeats.
Inferred read-onlyratio_calculatorSolve A:B = C:D for the missing value or reduce a ratio to lowest terms – 1920:1080 becomes 16:9.
Inferred read-onlyredundancy_pay_calculatorUK statutory redundancy pay calculator for 2026/27: age bands, up to 20 years’ service and the new £751 weekly pay cap (£783 in Northern Ireland).
Potential side effectsrent_vs_buy_calculatorThis rent vs buy calculator weighs the true cost of owning – interest, tax, upkeep, lost returns and equity – against renting, to find the break-even year.
Inferred read-onlyretirement_calculator$800 a month from age 35 at 7% grows to about $1.38 million by 65.
Inferred read-onlyroi_calculatorTurning $10,000 into $15,000 is a 50% return, or 14.47% a year over 3 years.
Inferred read-onlyroth_ira_calculatorCheck the 2026 Roth IRA limit ($7,500, or $8,600 at 50+) and the income phase-out for your MAGI, then project your tax-free balance against a taxable account.
Inferred read-onlysales_tax_calculatorAdd sales tax to a price or pull it out of a receipt: $127.50 at 6.25% is $120 before tax.
Inferred read-onlysaudi_end_of_service_calculatorSaudi end of service award: half a month’s wage a year for the first 5 years, a full month after, reduced on resignation (Labour Law Art.
Inferred read-onlyscientific_calculatorType 2^10 + √144 × sin(30) the way you would write it and get each step back.
Potential side effectsslope_calculatorTwo points in, the whole line out: slope as a fraction, y = mx + b, point-slope and standard form, the angle, distance and midpoint, each with its working.
Inferred read-onlysocial_security_calculatorClaim at 62 and get 70% of your benefit; wait until 70 and get 124%.
Inferred read-onlystamp_duty_calculatorUK stamp duty calculator 2026: SDLT in England & NI, LBTT in Scotland and LTT in Wales – with first-time buyer relief, second-home and non-resident rates.
Inferred read-onlystudent_loan_repayment_calculatorUK student loan repayment calculator for 2026/27: monthly repayments on Plans 1, 2, 4, 5 and Postgraduate, interest, years to repay and write-off.
Potential side effectstake_home_pay_calculatorNet pay after tax in 166 countries: $75,000 in Texas leaves about $61,592, £50,000 in the UK £39,520.
Potential side effectstax_free_salary_equivalent_calculatorConvert a tax-free Gulf salary (AED, SAR, QAR, KWD, BHD, OMR) into the gross salary you would need in the US, UK or Canada to take home the same pay.
Potential side effectsuae_corporate_tax_calculatorCalculate UAE corporate tax: 0% up to AED 375,000 and 9% above, Small Business Relief (revenue ≤ AED 3M, to 2029) and the 0% free zone regime.
Inferred read-onlyunit_price_calculatorA 500 g pack at $3.99 costs $0.80 per 100 g, so a 1 kg pack at $7.20 ($0.72) is the better buy.
Inferred read-onlywaist_to_hip_ratio_calculatorA waist of 86 cm over hips of 100 cm gives a WHR of 0.86.
Inferred read-onlywater_intake_calculatorA 70 kg adult who exercises 30 minutes a day needs about 2.8 L of water.
Inferred read-onlyweek_number_calculatorJanuary 1, 2026 is in ISO week 1, which began on December 29, 2025.
Inferred read-onlyweighted_average_calculatorScores of 85, 90 and 78 weighted 30%, 20% and 50% average 82.5, not 84.3.
Inferred read-onlyCONNECT WITH APPROVAL
Client installation
Review this server and its permissions before adding it. Secret placeholders must be set locally.
Codex
~/.codex/config.toml
[mcp_servers.calcbright]
url = "https://calcbright.com/mcp"
enabled = true
Claude Code
.mcp.json
{
"mcpServers": {
"calcbright": {
"type": "http",
"url": "https://calcbright.com/mcp"
}
}
}
Claude Desktop
Settings → Connectors → Add custom connector
Name: calcbright
Remote MCP URL: https://calcbright.com/mcp
Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.
Cursor
.cursor/mcp.json
{
"mcpServers": {
"calcbright": {
"url": "https://calcbright.com/mcp"
}
}
}
Visual Studio Code
.vscode/mcp.json
Add to Visual Studio Code{
"servers": {
"calcbright": {
"type": "http",
"url": "https://calcbright.com/mcp"
}
}
}
Generic MCP
Client-specific MCP configuration
{
"name": "calcbright",
"transport": "streamable-http",
"url": "https://calcbright.com/mcp"
}
MCP Inspector
Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.
TRUST AND VERIFICATION EVIDENCE
Loading Trust v2 evidence…
Checking the associated registrable domain. The BuiltWith key remains server-side.
Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.