Everyday calculators with the working shown
These calculators answer the questions people search for most often: how much a loan will cost each month, what the price is before or after GST, how old someone is to the day, what a percentage works out to, and whether a weight is in the healthy range for a height. Each one shows the formula it uses, so you can check the answer or explain it to someone else.
The calculators
- EMI Calculator gives the monthly instalment, total interest and total amount for a loan.
- GST Calculator adds GST to a price or removes it from one, with the CGST and SGST split.
- Age Calculator gives an exact age in years, months and days, and the days until the next birthday.
- Percentage Calculator works out marks, a percentage of a number, and increases or decreases.
- BMI Calculator works out body mass index in metric or feet and inches.
Good to know
Results are for information only. A bank's EMI can differ slightly because of processing fees, insurance or the exact day interest is charged, and BMI does not account for muscle, age or body shape. Use the numbers to plan and compare, then confirm anything important with your lender, accountant or doctor.