Scientific Calculator

📋 History

Calculator Functions Reference

🔺 Trigonometry

Sinesin(x)
Cosinecos(x)
Tangenttan(x)
Inverse sinsin⁻¹(x)
Inverse coscos⁻¹(x)
Inverse tantan⁻¹(x)

📈 Logarithms

Log base 10log(x)
Natural logln(x)
Log base 2log₂(x)
10 to power x10ˣ
e to power xeˣ

⚡ Powers & Roots

Squarex²
Cubex³
Power of yxʸ
Square root√x
Cube root∛x
Nth rootⁿ√x

🔢 Constants

Pi3.14159265...
Euler's e2.71828182...
Factorialn! = n×(n-1)×...
Moduloa mod b
Random0 to 1

Follow the steps below to use every feature of this calculator. You can also use your keyboard to type numbers and operators directly. Click 🧮 Calculator tab anytime to go back.

Basic Calculations

Click number buttons 0–9 to enter a number. Use + − × ÷ for basic operations. Press = or hit Enter on your keyboard to get the result.

Example:Press 1 2 × 5 = → Result: 60

Angle Mode — DEG / RAD / GRAD

Before using sin, cos, or tan, choose your angle unit. DEG = degrees (most common), RAD = radians, GRAD = gradians.

Example:Select DEG → type 90 → press sin → Result: 1

Trigonometry — sin, cos, tan

Type your angle number first, then press sin, cos, or tan. Make sure your angle mode is set correctly (DEG or RAD).

Example (degrees):Type 45 → press tan → Result: 1

Example (radians):Select RAD → type 0 → press cos → Result: 1

2nd Button — Inverse Functions

Press 2nd (top right of display) to switch button labels to their inverse versions. Press again to switch back.

What changes: sin→sin⁻¹ | cos→cos⁻¹ | tan→tan⁻¹ | x²→√x | log→10ˣ

Example (find angle):Press 2nd → type 1 → press sin⁻¹ → Result: 90°

Powers & Roots

Use x² to square, x³ to cube, or xʸ for any power. For roots use √x, ∛x, or ⁿ√x (a popup will ask for n).

Square:Type 8 → press x² → Result: 64

Power:Type 2 → press xʸ → type 10 → press = → Result: 1024

Nth root:Type 16 → press ⁿ√x → enter 4 in popup → Result: 2

Logarithms

Type your number first, then press the log button. log = log₁₀, ln = natural log (base e), log₂ = log base 2.

Example:Type 1000 → press log → Result: 3

Natural log:Type 1 → press ln → Result: 0

Constants — π and e

Press π to insert pi (3.14159...) or e to insert Euler's number (2.71828...) into your calculation.

Area of circle r=5:Press π → press × → type 5 → press x² → press = → Result: 78.5398…

Factorial — n!

Type a whole positive number then press n!. Multiplies all whole numbers from 1 up to n. Works for 0–170.

Example:Type 5 → press n! → Result: 120 (5×4×3×2×1)

Memory Buttons — MC MR M+ M−

Save a number and reuse it later without writing it down.

M+Adds current number to memory

M−Subtracts current number from memory

MRRecalls the saved memory value

MCClears (erases) the memory

Example:Type 50 → M+ → clear → type 30 → M+ → MR → Result: 80

Brackets — ( )

Use brackets to control the order of operations. Everything inside brackets is calculated first.

Example:Press ( → type 3 + 4 → press ) → press × → type 2 → press = → Result: 14

ANS — Reuse Last Answer

Press ANS to insert your last calculated result into a new calculation. Great for chaining multiple steps.

Example:Calculate 10 + 5 = 15 → press ANS → press × → type 3 → press = → Result: 45

History Panel

Every calculation is saved in the History panel on the right (desktop only). Click any past result to load it back. Press Clear all to wipe history. On mobile, use ANS instead.

⌨️ Keyboard Shortcuts

Use your keyboard for fast calculations — no clicking needed.

0 – 9Enter digits

+ − * /Basic operators

EnterCalculate (same as =)

BackspaceDelete last character

EscapeClear all (same as AC)

( )Open / close brackets

.Decimal point

%Percentage

💡 Quick Tips

✓Press AC to clear everything and start fresh
✓Press ⌫ to delete just the last digit you typed
✓Press +/− to flip a number between positive and negative
✓Press HYP before sin/cos/tan to use hyperbolic functions (sinh, cosh, tanh)
✓Use EE for scientific notation — e.g. 1.5 EE 3 = 1500
✓Use mod to find the remainder — e.g. 17 mod 5 = 2
✓Use |x| to get the absolute (positive) value of any number
✓Use RND to generate a random number between 0 and 1
✓Use 1/x to instantly find the reciprocal of any number