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Scientific Calculator
Free online scientific calculator with brackets, powers, roots, trigonometry and logarithms.
About this calculator
Use the keypad or type with your keyboard. It supports brackets, powers (^), square root, factorial (!), percent (%), sin, cos, tan and their inverses, natural log (ln), log base 10, π and e. Switch between DEG and RAD for angles. Press = or Enter to calculate, and use Ans to reuse the last answer.
Results are estimates for information only. Please confirm important decisions with a qualified professional.
Frequently asked questions
Should I use DEG or RAD?
Use DEG when angles are in degrees (sin 30 = 0.5) and RAD when they are in radians.
Does it follow BODMAS?
Yes. Brackets first, then powers, then multiplication and division, then addition and subtraction.