Tip, loan, BMI, age, percentage, unit and currency calculators — instant, free, browser-based
Calculate tip and split the bill per person. Multiple currencies, tipping guide.
Use ToolMonthly payment, total interest and full amortization schedule for any loan.
Use ToolCalculate percentages, percentage change, and percentage of a number.
Use ToolCalculate exact age in years, months and days from your birthdate.
Use ToolCalculate your Body Mass Index and find out your health status.
Use ToolConvert between all units — length, weight, temperature, data, energy and more.
Use ToolConvert between 150+ currencies with live exchange rates. Updated daily.
Use ToolA growing collection of free, accurate calculators covering finance, health, maths and everyday life. Every calculator runs entirely in your browser — no sign-up, no data sent to a server.
| Calculator | Primary Use | Key Feature |
|---|---|---|
| Loan | Mortgage planning | Full amortisation CSV export |
| Currency | Travel, transfers | Live rates, 150+ currencies |
| BMI | Health check | Metric + Imperial, ideal weight |
| Tip | Restaurant bills | 7 currencies, per-person split |
| Age | Birthday, documents | Works with future dates |