Maths calculators

Scientific, fractions, percentages, discounts.

• Scientific calculatorFree online scientific calculator with trig in degrees or radians, logs, powers, roots, factorials and percentages. Type or tap; works on any phone.
• PercentageFind X% of Y, what percent X is of Y, percentage increase or decrease, and percentage difference. Instant answers with the formula shown.
• FractionsAdd, subtract, multiply and divide fractions and mixed numbers. Get the simplest form, mixed number, decimal and the working step by step.
• DiscountWork out the sale price and how much you save, including stacked offers like '20% off + extra 10% off'. See the real combined discount.