Calculators
Percentages, BMI, tips, discounts — quick everyday answers.
Calculators here give quick answers to everyday number questions without hunting for a formula. This category covers working out percentages, a body mass index, a restaurant tip, or a sale price after a discount, along with averages, ratios, and fractions. There is a scientific calculator for longer sums, a random number generator, and a calorie calculator for rough daily estimates. People reach for these to settle a quick figure at the shops, in the kitchen, at work, or while studying, without opening a spreadsheet.
Percentage CalculatorWork out any percentage.BMI CalculatorBody mass index.Tip CalculatorSplit the bill and tip.Discount CalculatorPrice after a discount.Average CalculatorMean, median and mode.Scientific CalculatorFull scientific calculator.Random Number GeneratorPick random numbers.Ratio CalculatorSimplify, solve, scale and split ratios.Fraction CalculatorAdd and simplify fractions.Calorie CalculatorDaily calorie needs.Perfume Split CalculatorSplit a bottle's cost by ml.
Frequently asked questions
- Are these calculators free, and do I need to register?
- Every calculator here is free, with no account, registration, or usage limit. You can run as many calculations as you want, as often as you want. There is no paid tier holding back the answer.
- Do I have to install anything to use the calculators?
- No. The calculators run in a normal web browser on desktop or mobile, so there is nothing to download or install. You open the one you need and start typing in numbers.
- Is it safe to type my numbers in?
- These calculators run in your browser, so the figures you enter are worked out on your own device. You do not sign in to use them, and the numbers are not tied to any account. That makes them fine for quick personal sums.
- Which calculator should I use for what?
- For a share or change expressed as a percent, use the Percentage Calculator; for a gratuity, the Tip Calculator; for a sale price, the Discount Calculator. The BMI Calculator and Calorie Calculator give rough personal estimates, while the Average, Ratio, and Fraction Calculators handle those specific sums. For anything more involved, the Scientific Calculator covers longer expressions, and the Random Number Generator picks a number for you.