Free Calculators
Everyday calculators for percentages, discounts, BMI, calories, averages, tips and fuel costs. Type your numbers and get an instant answer with the working shown.
9 calculators tools
Percentage Calculator
Find percentages, percentage change and what percent one number is of another.
-%Discount Calculator
Work out the sale price and amount saved after a discount.
BMIBMI Calculator
Calculate body mass index with metric or imperial units.
kcalCalorie Calculator (TDEE)
Estimate daily calories to maintain, lose or gain weight.
x̄Average Calculator (Mean, Median, Mode)
Find the mean, median, mode, range and sum of a set of numbers.
TipTip & Bill Split Calculator
Calculate the tip and split a bill between friends.
mpgFuel Cost & MPG Calculator
Estimate the fuel cost of a journey in miles and pence per litre.
16:9Aspect Ratio Calculator
Find an aspect ratio or scale dimensions while keeping proportions.
+%Percentage Increase Calculator
Work out the percentage increase or decrease between two numbers.
Frequently asked questions
How accurate are the results?
Calculations use standard formulas and JavaScript floating-point arithmetic, which is accurate for everyday use.
Do you store what I type?
No. Everything is computed in your browser.