How beMyCalc builds, tests, and documents all 123 calculators — formulas, data sources, and assumptions.
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When you move a slider or type an amount, the math runs locally in your browser. We do not send loan balances, salaries, or investment amounts to our servers. Share links encode your inputs in the URL so you can bookmark or send a scenario — treat shared URLs like any link that contains personal numbers.
Most tools use widely published financial math: reducing-balance EMI amortization, compound interest, SIP future value, CAGR, present/future value, and similar textbook formulas. Below you'll find every calculator with its formula and a link to the live tool. Each calculator page also has a "How we calculate" panel with the same equation.
India income tax, HRA, and regime-compare tools use slab rates and deductions documented for FY 2024-25 (AY 2025-26). PPF, NPS, SSY, NSC, and similar scheme calculators let you enter the notified interest rate — we do not hard-code a single live government rate unless the tool explicitly states one as a default example.
Scheme limits (80C cap, PPF yearly maximum, etc.) follow commonly cited rules at the time of the last review. Indian rules change in Union Budgets and notifications — always confirm with the Income Tax portal, EPFO, or your chartered accountant before filing or investing.
The currency converter fetches indicative mid-market rates from the Frankfurter API (European Central Bank reference data), cached for about an hour. Banks and card networks apply their own spreads and fees — use the exchange calculator to model fees separately.
Calculator pages show sample scenarios (e.g. ₹10L loan at 8.5% for 20 years). These are illustrations to explain the tool, not recommendations. Guides on /guides link to calculators so you can replace example numbers with your own.
Found a wrong formula, outdated slab, or broken share link? Use our contact form with the calculator URL and your expected result.
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5 tools in Health & Wellness — showing 1–5
Age = calendar difference from date of birth to as-of date (years, months, days after month/day borrowing). Total days = end − start in whole days.
Enter your date of birth and optionally an “as of” date. We compute exact calendar age, total time lived, next birthday countdown, a live seconds counter when birth time is set, Journey of Life stats, and milestone timeline — with PDF export.
Open calculator →Gap = calendar span from earlier birth date to later birth date (years, months, days). Each person's age uses the same rules from their DOB to the as-of date.
Enter two dates of birth (optional names) and an as-of date. We compute each person's exact age and the calendar gap from the earlier birth to the later one — years, months, days, and total days apart.
Open calculator →Metric: BMI = weight (kg) ÷ height (m)². Imperial: BMI = 703 × weight (lb) ÷ height (in)². BMI Prime = BMI ÷ 25. Ponderal Index = weight (kg) ÷ height (m)³
Choose metric or imperial, enter age, gender, weight, and height. We compute BMI, BMI Prime, Ponderal Index, WHO category, healthy weight band, an 8-zone visual gauge, comparison chart, and personalised wellness tips — with a link to build a full diet and workout plan.
Open calculator →Men: BMR = 10×kg + 6.25×cm − 5×age + 5. Women: BMR = 10×kg + 6.25×cm − 5×age − 161 (Mifflin–St Jeor). TDEE = BMR × activity factor (1.2–1.9)
Enter age, gender, weight, and height (metric or imperial), then pick an activity level. We compute Mifflin–St Jeor BMR, TDEE for each activity factor, activity calories above rest, and gentle cut/surplus bands — with a link to build a full diet and workout plan.
Open calculator →Cancel common letters pairwise from both names → count remaining letters → eliminate F-L-A-M-E-S circularly until one letter remains
Enter your name and your partner's (or crush's) name. We cross out matching letters from both names, count what's left, then eliminate FLAMES letters in a circle until one remains — F Friends, L Lovers, A Affectionate, M Marriage, E Enemies, S Siblings.
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