What this tool does
Scientific Calculator provides common math functions for arithmetic, exponents, roots, trigonometry, and logs.
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🧮 Scientific Calculator
Evaluate arithmetic, trig, logs, exponents, roots, and constants with a safe deterministic expression parser.
Scientific calculation checks
Supports numbers, parentheses, + − × ÷, %, ^, constants pi/e, and one-argument functions like sin, cos, tan, sqrt, log, ln, abs, floor, ceil, round, and exp. Trig functions use radians.
Why it is useful
It helps with homework, engineering estimates, quick checks, and everyday calculations that need more than a basic calculator.
How it works
The browser parses a limited math expression grammar and evaluates it locally without network calls.
Best input
Use parentheses to make operation order explicit and remember trig functions use radians.
Accuracy tip
For high-stakes engineering or scientific work, verify precision, units, and significant figures in a specialized tool.
Privacy note
Calculations run locally in your browser.
Important limitation
Floating-point rounding, angle units, and expression order can affect results.
Quick answers
Degrees or radians?
Trig functions use radians in this shared-core version.
Why are decimals sometimes weird?
Computers represent many decimals approximately in binary floating point.
Common Use Cases
Check trig identities
Evaluate expressions like sin(pi / 4)^2 + cos(pi / 4)^2.
Run quick engineering math
Use exponents, logs, roots, and constants for local estimates.