Scientific calculator

Type a scientific expression, with degrees or radians.

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Scientific calculator processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Saved tools store only their names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. An optional “Use in” action keeps a handoff in this tab. The next tool removes it on arrival and ignores it if more than a minute has passed.

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Your calculation

Angle unit

Answer

Answer precision

Decimal places

Rounding changes the displayed answer, not the calculation. Copy and download use the displayed precision; memory keeps the calculated value.

Type or paste a sum. Enter calculates; Escape clears.

Functions, memory and recent calculations

Functions: sin, cos, tan, asin, acos, atan, sqrt, abs, ln, log, exp, floor and ceil. Use * to multiply. Copy or download the answer below.

Memory: 0

Memory and calculations clear when you leave this page.

Scratch calculator

Check another calculation

Use +, −, ×, ÷, parentheses and %. A percentage is divided by 100. This does not change the main tool.

Reset reloads the tool with its starting values and releases open files and device controls. Saved drafts stay on this device until you delete them.

Links include your inputs and settings. Anyone with the link can see them, so leave out private text. Files and generated results are left out; random draws run again.

Keyboard shortcuts

Updated 2026-09-26

Using Scientific calculator

Use parentheses, powers, factorial, percent, square roots, logarithms and trigonometric functions. Powers associate right to left; −2^2 means −(2^2).

Real-number arithmetic only. Multiply explicitly: use 2*pi, not 2pi. Percent divides the preceding value by 100. Factorial accepts whole numbers from 0 to 69. Log is base 10; ln is base e.

Next: Basic calculator

A worked example

With expression = sqrt(81) + 2^3, the answer is 17.

Next: Fraction calculator

Before you use the result

Real-number arithmetic only. Multiply explicitly: use 2*pi, not 2pi. Percent divides the preceding value by 100. Factorial accepts whole numbers from 0 to 69. Log is base 10; ln is base e.

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ToolOctopus. “Scientific calculator.” Updated 2026-09-26. https://tooloctopus.com/scientific-calculator.

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