Free scientific calculator online for arithmetic expressions, brackets, powers, square roots, and fast math calculations.
If this tool isn’t working as expected, please take a screenshot of the error and report the problem here so we can investigate and improve it.
Sometimes you just need to type a calculation - like 12*(4+3)/2 - and get a correct answer without opening a spreadsheet or hunting for a physical calculator. This tool evaluates typed expressions with correct order of operations (parentheses first, then exponents, then multiplication/division, then addition/subtraction) and automatically shows three extra values alongside the result: a rounded whole number, the square root, and the square - useful for a quick sanity check without typing a second expression.
It runs entirely in your browser with no install and no login. It's built for arithmetic expressions, not trigonometry or logarithms - see the Limitations section for exactly what's supported.
Type a math expression - numbers, parentheses, and the operators +, -, *, /, and ^ - and get an instant result, plus three supporting values calculated automatically: the result rounded to a whole number, its square root, and its square. This is a typed-expression calculator: it evaluates arithmetic correctly, including operator precedence and nested parentheses, but it doesn't include trigonometric functions (sin, cos, tan), logarithms (log, ln), or constants like π or e.
Type your math expression using numbers, brackets, and operators.
The tool calculates the result instantly in the browser.
Check rounded result, square root, and squared value.
Use the result for quick calculations, homework, or office work.
Type the full expression with parentheses, like 12*(4+3)/2, and get the correctly-ordered result in one step.
Type the number or expression you want the square root of - it's calculated automatically and shown alongside the main result.
Use the ^ operator for one exponent, like 1.05^1 for a single period of 5% growth - only one exponent is allowed per expression.
This tool doesn't support sin, cos, tan, log, or ln - it only evaluates arithmetic expressions. A dedicated scientific-function tool would be needed for those calculations.
Type ÷ or × instead of / and * if that's more natural - both are automatically converted before evaluation.
Best For
Input
12 * (4 + 3) / 2Result
Result 42.000000, Rounded 42, Square Root 6.480741, Squared 1764.000000Parentheses are resolved first (4+3=7), then multiplication and division left to right (12*7/2=42). The three supporting values are calculated automatically from that result - there's no need to type a second expression.
Type an expression with parentheses and operators to get a correctly-ordered result in one step, instead of calculating each part separately.
The square root and square of your result are shown automatically without a second calculation.
Use the ^ operator for one power calculation per expression, like a single compounding period or an area/volume formula.
Problem
Solution
Typing any letter causes the expression to be rejected as invalid - only digits, parentheses, and the operators +, -, *, /, ^, and % are accepted. There's no trigonometric or logarithmic function support.
Problem
Solution
The % symbol is accepted, but it computes mathematical modulo (the remainder of division), not a percentage. For example, 50%2 returns 0 (the remainder of 50 divided by 2), not 25 or 1.
Problem
Solution
An expression with more than one ^ (like 2^3^2) is rejected with a message asking for only one exponent per expression - a deliberate limit to avoid extremely large intermediate values.
Problem
Solution
Only numbers and operators are accepted - there's no way to reference constants like π or e, and no variable support.
Problem
Solution
Square root is only available as an automatic output of your result - you can't type sqrt(...) or a root symbol into the expression itself.
Standard math order of operations applies (parentheses, then exponents, then multiplication/division, then addition/subtraction) - wrap parts of your expression in parentheses whenever you want them calculated first.
The Rounded, Square Root, and Squared values are calculated automatically from your result - useful for a quick sanity check without retyping anything.
Since % computes modulo rather than percentage here, calculate percentages manually (like multiplying by 0.20 for 20%) instead of typing a % expression.
Since only one ^ is allowed per expression, calculate one exponent, note the result, then use it in a second expression for the next power.
sin, cos, tan, and their inverse/hyperbolic variants aren't supported - typing any letter causes the expression to be rejected.
log and ln aren't supported, for the same reason - letters aren't accepted in the input at all.
There's no way to reference π, e, or any other named constant - only literal numbers can be typed.
% computes the mathematical remainder of division, not a "percent of" calculation - a common point of confusion if you're expecting percentage behavior.
Expressions with more than one ^ are rejected, to avoid computing extremely large intermediate values from chained exponents.
Since there are no trigonometric functions, degree/radian mode doesn't apply. There's also no calculation history and no memory (M+/M-/MR/MC) functions.
The square root shown is always calculated from your full expression's result - you can't type a square root into the expression itself.
Despite the page's name, this tool's real capability is typed arithmetic - a true scientific calculator (like a physical TI/Casio device or Desmos) additionally includes trigonometry, logarithms, and constants.
| This Tool | A True Scientific Calculator | |
|---|---|---|
| Arithmetic, brackets, one exponent | Yes | Yes |
| Trigonometric functions (sin/cos/tan) | No | Yes |
| Logarithms (log/ln) | No | Yes |
| Constants (π, e) | No | Yes |
| Automatic square root/square of the result | Yes - shown alongside every result | Varies by device |
Which should you use?
Use this tool for fast typed arithmetic with automatic supporting values. For trigonometry, logarithms, or other scientific functions, you'll need a dedicated scientific calculator or graphing tool.
The most important thing to know before typing an expression: this tool evaluates arithmetic - numbers, parentheses, and the four basic operators plus one exponent - correctly and instantly, but it doesn't include trigonometric or logarithmic functions. The FAQ below covers exactly what is and isn't supported.
It handles arithmetic expressions, brackets, powers, and quick result checks like rounding, square root, and squared values. The % symbol works as mathematical modulo (remainder), not as a percent-of calculation.
Yes. You can enter expressions like 12*(4+3)/2 directly in the input field.
Yes. It runs directly in the browser without any paid API or download.
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