🔢 Math Calculator
Scientific Calculator
A full-featured scientific calculator with trigonometric functions, logarithms, powers, roots, factorials, and constants — all in your browser.
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📖 How to Use the Scientific Calculator
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Select angle mode — DEG (degrees), RAD (radians), or GRAD at the top.
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Tap number buttons to enter your value, then use operators (+, −, ×, ÷) for basic math.
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Use function buttons like sin, cos, log, √, x² for advanced calculations.
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Tap = (equals) to compute the result. The expression is shown above the result.
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Use AC to clear everything, or ⌫ to delete the last character.
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Tap Copy Result to copy the answer to your clipboard.
⚡ Why Use Our Scientific Calculator?
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Full Trig Functions
sin, cos, tan, and their inverses — in DEG, RAD, or GRAD.
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Logs & Powers
log, ln, 10ˣ, eˣ, x², x³, xʸ — all in one place.
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Roots & More
Square root, cube root, factorial, absolute value, and inverse.
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Mobile-Friendly
Fully responsive touch-friendly buttons on all devices.
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Instant Results
Calculations happen in real-time with no delay.
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100% Free
No sign-up required — use unlimited times for free.
❓ Frequently Asked Questions
DEG (degrees) and RAD (radians) are two ways to measure angles. A full circle = 360° or 2π radians. Use DEG for everyday geometry, RAD for calculus and physics. Select your mode before using sin, cos, or tan.
Select DEG or RAD mode, enter your angle number, then tap sin, cos, or tan. For example: type 30 then tap sin in DEG mode = 0.5.
Enter the base (2), tap xʸ, then enter the exponent (8) and tap = to get 256. You can also use x² for squaring and x³ for cubing with one tap.