Calculators

Find what percent one number is of another, or take a percentage of a number. Results update as you type.

Increase a number by a percent, or find the percentage increase between two numbers.

Work out the sale price and how much you save from a percent off.

Decrease a number by a percent, or find the percentage decrease between two numbers.

Work out the tip, the total, and each person's share of the bill.

Add, subtract, multiply, and divide, including brackets. The sum runs in the browser.

See the monthly repayment, the interest, and the total you'll pay on a fixed loan.

Watch a balance grow when interest and regular deposits keep stacking.

Project where your savings land from a starting amount and a monthly deposit.

Turn what you put in and what you got back into profit and ROI.

Add tax to a price, or pull the tax back out of a total you've already been quoted.

Find the time between two clocks — including when the span runs overnight.

Count the days, weeks, and months between two dates.

Estimate Australian resident tax, the Medicare levy, and what you'd take home.

Turn an annual salary into an hourly rate from the hours and weeks you work.

Price ordinary hours and overtime from an hourly rate and a multiplier.

Work out body mass index from height and weight, then see the adult screening band.

Get a daily calorie guide from your details and whether you want to lose, maintain, or gain.

Estimate basal metabolic rate with the Mifflin–St Jeor equation.

Estimate daily energy use from your BMR and how active the day is.

Work out a credit-weighted GPA on a 4.0 scale.

Turn points earned into a percentage and a letter grade.

Convert length, weight, temperature, volume, and area — pick the pair and type the number.

Add monthly subscriptions and see the annual total — the number people under-count.

See who owes whom after a shared spend.

Log income and expenses and watch the profit. It stays on this page.

What fees add to a plan that is advertised as interest-free.

Years to financial independence on the 4% rule, from the numbers you type.

A rough Australian tax estimate on freelance income beside a wage. Not a lodgement.

How spare change from round-ups adds up over a year.

Add assets and liabilities and see the net figure, with a simple breakdown.

Estimate when a debt is paid off, and how extra payments change the interest.