How beMyCalc builds, tests, and documents all 123 calculators — formulas, data sources, and assumptions.
Jump to all calculator formulas →
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Found a wrong formula, outdated slab, or broken share link?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.
See also: About beMyCalc · Disclaimer
123 tools — showing 121–123
result = input × (factor_from ÷ factor_to) relative to the SI base unit for this type
Volume converts via litres as the base. US and UK gallons differ — pick the correct gallon type for cooking or fuel calculations.
Open calculator →result = input × (factor_from ÷ factor_to) relative to the SI base unit for this type
Pick your weight value and units. Kilograms are the base — 1 kg = 2.20462 lb, 1 stone = 6.35029 kg, and so on.
Open calculator →XIRR solves for the annualized return r where NPV of all dated cash flows = 0 (Newton-Raphson / IRR method)
Add investment and redemption transactions with dates. XIRR calculates the annualized return accounting for timing of cash flows.
Open calculator →