Small tools, big time saved.
Free browser tools for business, study, writing and images. Everything runs on your device and nothing you type is sent to us.
Scientific calculator
A full scientific calculator with trigonometry, logarithms, powers, roots, factorials and degree or radian mode.
What is the scientific calculator used for?
A scientific calculator goes beyond addition and subtraction. It handles trigonometry (sine, cosine, tangent), logarithms, powers, square roots, factorials and brackets, which are needed in maths, physics, chemistry and engineering. Students use it for homework and exam practice, and engineers and analysts use it for quick technical calculations.
Type an expression such as sin(30) + 2^3 * (4 + 5) or use the keys, then press = or Enter. Choose degrees or radians for trigonometric functions. The calculator follows the normal order of operations, and Ans reuses the last result.
Why use this one
You type the whole expression, so you can see and correct it before getting the answer, unlike a basic key-by-key calculator. It runs in your browser, needs no sign-up, and never sends what you type anywhere.
Frequently asked questions
Does it follow the order of operations?
Yes. Brackets first, then powers, then multiplication and division, then addition and subtraction. Unary minus is applied after the power, so -2^2 equals -4.
How do I switch between degrees and radians?
Use the Angle mode menu. In degree mode sin(30) is 0.5. In radian mode you would enter sin(pi/6) to get 0.5.
How do I use powers, roots and factorials?
Write 2^10 for a power, sqrt(81) for a square root, and 5! for a factorial. Factorials work for whole numbers from 0 to 170.
What do log and ln mean?
log is the base-10 logarithm and ln is the natural logarithm (base e). For example, log(1000) is 3 and ln(e) is 1.
Can it reuse my last answer?
Yes. Press the Ans key to insert the result of the last calculation you finished with =.