Everyday percentage and price calculators
Work out percentages, sale discounts and pack unit prices with simple formulas and transparent examples.
Choose a everyday calculator
Percentage calculator: increases and decreases
Find a percentage, a discounted price or an increase.
EverydayUnit price calculator: compare pack prices
Compare two packs using the same measurement unit.
EverydayDiscount calculator UK: sale price and savings
Find the sale price after one percentage discount.
EverydayWhere to start
Use percentage calculations for a change from a starting amount, the discount tool for a single sale reduction and unit price to compare two quantities in matching measurement units.
UK data and coverage
These tools use arithmetic and your inputs. They do not need official tax tables or a location lookup, and their examples are not live retail prices.
Each calculator explains the formula, includes a worked example and identifies the assumptions that can affect your result. Official rule tables and dated price references are linked on the relevant pages.
Read the data sources and calculation methodology or browse all UK calculators.