Scientific Calculator — साइन्टिफिक क्याल्कुलेटर
BODMAS • trig • √ • xʸ • n!
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A free online scientific calculator that works right in your browser on mobile and computer — no app, no install, no sign-up. It does everything a Casio-style scientific calculator does: full BODMAS order of operations, brackets, powers and roots, trigonometry (sin, cos, tan and their inverses), logarithms (ln and log), factorial, π and e, percentages and a memory. Type an expression like 2(3+5)^2 − √144 and the answer updates as you type.
Switch between DEG (degrees) and RAD (radians) for trigonometry with one tap, and use the on-screen keypad or your physical keyboard — whichever is faster. Press Enter for the result, Esc to clear.
| Key | Function | Example |
|---|---|---|
| + − × ÷ | Add, subtract, multiply, divide | 12 × 5 = 60 |
| ( ) | Brackets — control order of operations | 2 × (3 + 4) = 14 |
| xʸ | Power / exponent | 2 ^ 10 = 1024 |
| x² | Square | 9 ^2 = 81 |
| √ | Square root | √(144) = 12 |
| 1/x | Reciprocal | 1/(4) = 0.25 |
| sin cos tan | Trigonometry (respects DEG / RAD) | sin(30) = 0.5 |
| ln | Natural logarithm (base e) | ln(e) = 1 |
| log | Logarithm base 10 | log(1000) = 3 |
| n! | Factorial | 5! = 120 |
| % | Percent (divides by 100) | 200 × 15% = 30 |
| π , e | Constants | π = 3.14159… |
| MC MR M+ M− | Memory clear, recall, add, subtract | — |
1. Choose DEG or RAD if you are doing trigonometry (degrees is the default).
2. Tap the keys, or just type on your keyboard — the result appears live below the expression.
3. Use brackets to control order of operations; the calculator follows BODMAS automatically.
4. Press = (or Enter) to lock in the result and keep calculating with it. Use M+ to store a value and MR to bring it back.
Everything runs in your browser — nothing you type is sent to or stored on any server.
For worked, step-by-step linear and quadratic equations use the Math Solver; for quick percentage problems try the Percentage Calculator; convert between units of length, weight and area with the Unit Converter; or work out school and college grades with the GPA Calculator.
Yes — it is completely free with no limits, no sign-up and no ads to click through. Use it as often as you like on your phone, tablet or computer.
Yes. It runs entirely inside your web browser — there is nothing to download or install. Once the page has loaded it keeps working even on a slow or dropped connection, because every calculation happens on your own device.
DEG measures angles in degrees (a right angle is 90) and RAD measures them in radians (a right angle is π/2). It only affects the trigonometric functions sin, cos and tan. For school and everyday work, keep it on DEG — that is the default.
Yes. Type digits and operators (+ − * / ^) directly, press Enter for the result and Escape to clear. On a computer this is much faster than clicking the on-screen keys.
Completely. The calculator never sends what you type anywhere — all the maths is done in your browser, so nothing is uploaded or stored on any server.