Everyday Tools Calculators
Practical calculators for the small calculations that come up in daily life.
Cost Per Mile Calculator
Work out what each mile of driving actually costs, once fuel, insurance, maintenance, and depreciation are all counted.
Cost Per Serving Calculator
Work out what a home-cooked meal costs per plate, so you can budget and compare it against eating out.
Discount Calculator
Work out the sale price after a percentage discount, and see exactly how much the markdown saves you off the original price.
Service Charge Calculator
Work out the service charge added to a bill and the total to pay — the mandatory charge some restaurants, hotels, and venues apply.
Solar Panel Payback Calculator
Work out how long a solar panel system takes to pay for itself — the year its energy savings have recovered the installed cost.
Tip Calculator
Work out the tip on a bill and the total to leave, for a meal, a ride, or any service where a gratuity is customary.
Unit Price Calculator
Work out the price per unit of an item so you can compare value fairly across packs of different sizes.