Calculators

Finance, health, dates and everyday math — instant and accurate.

12 tools

Every tool in this category is free, needs no sign-up and runs entirely in your browser. Pick one below to get started.

Exact age in years, months, days plus next-birthday countdown.

Body Mass Index with healthy-range guidance, metric or imperial.

Percent of, increase/decrease, and what-percent calculations.

Monthly EMI, total interest and a full amortization schedule.

Estimate payments with down payment, taxes, insurance and PMI.

Project growth with regular contributions and any compounding.

Add or remove sales tax / VAT and see the breakdown.

Final price after one or stacked discounts, plus you-save amount.

Tip and per-person totals with bill splitting and rounding.

Weighted GPA from courses, credit hours and letter grades.

Days, weeks, months between dates, or add/subtract a duration.

Trip fuel cost and consumption from distance, price and economy.

Other categories