5 free tools
Calculators
Fast answers to everyday maths: what’s 15% of a price, how much a discount really saves, which pack is better value, or whether two medium pizzas beat one large. Each calculator shows the formula, so you can see how the answer was reached.
- Percentage CalculatorX% of Y, what percent, percentage change, increase/decrease and reverse %.Popular
- Pizza Size CalculatorIs one large pizza better than two mediums? Compare total pizza and price per inch.
- Unit Price CalculatorWhich pack is really cheaper? Compare price per 100 g, per litre or per item.
- Discount CalculatorSale price after % off, stacked discounts and tax, and how much you save.
- Fraction CalculatorAdd, subtract, multiply and divide fractions, with steps.Popular
Frequently asked questions
Do I need to press calculate?
No. Results update instantly as you type.