Everyday calculators
Everyday numbers.
A little less effort.
Work out percentages, split bills, convert units and plan everyday tasks. Clear answers for time, shopping, recipes and more.
Tools for your day
Choose a calculator
Percentage
Find a percentage of a number, turn a part into a percentage or work backwards to the whole.
Open calculatorPercentage change
Compare an old and new value to find the percentage increase or decrease.
Open calculatorDiscount
See the final sale price and exactly how much a percentage discount saves.
Open calculatorUnit price comparison
Compare two pack sizes on price per kilogram, litre or item.
Open calculatorBill splitter and tip
Split a bill equally or by relative shares, with optional tip and exact penny allocation.
Open calculatorHours and time duration
Find working hours between clock times, subtract breaks and handle overnight shifts.
Open calculatorDate difference
Count calendar days and whole weeks between dates, with optional inclusive counting.
Open calculatorRecipe scaler
Scale several ingredient quantities together for a different number of servings.
Open calculatorFuel trip cost
Estimate journey fuel use and cost from your distance, consumption and price per litre.
Open calculatorElectricity running cost
Estimate appliance energy use and cost using your own electricity rate.
Open calculatorSavings goal
Find how many weekly or monthly contributions are needed to reach a target.
Open calculatorPaint quantity
Estimate litres of paint from wall area, openings, coats and stated coverage.
Open calculatorLength area weight and volume converter
Convert compatible metric and imperial units with explicit unit definitions.
Open calculatorNo matching calculators
Try “percentage”, “discount” or “project”.