Calculators
Everyday percentage, money, health and date calculators. Every one shows its working, not just the answer, so you can check it — and they all run on your own device.
Percentage Calculator
Work out a percentage of a number, or the change between two.
Discount Calculator
See the sale price and exactly how much you save.
BMI Calculator
Body mass index in metric or imperial, with the healthy range.
VAT Calculator
Add or remove VAT at any rate, with the net and gross shown.
GST Calculator
Add or remove GST at Indian and Australian rates.
Loan EMI Calculator
Monthly instalment, total interest and the full cost of a loan.
Mortgage Calculator
Monthly repayment, total interest and loan-to-value.
Compound Interest Calculator
Growth over time, with optional monthly contributions.
Profit Margin Calculator
Margin, markup and profit — and the difference between them.
ROI Calculator
Return on investment, plus the annualised rate.
Age Calculator
Exact age in years, months and days, plus your next birthday.
Date Difference Calculator
Days between two dates, including working days.
Time Calculator
Add or subtract hours, minutes and seconds.