Scientific Calculator Free Online Tool 2026

Last updated March 22, 2026

Scientific Calculator Examples

The Scientific Calculator handles trigonometry, logarithms, exponentials, statistics, complex numbers, and more. Below are examples of common calculations.

Basic Arithmetic with Operator Precedence

Expression: 2 + 3 × 4
Result: 14  (multiplication before addition)

Expression: (2 + 3) × 4
Result: 20  (parentheses first)

Expression: 2^10
Result: 1024

Expression: √144
Result: 12

Expression: ∛27
Result: 3

Trigonometric Functions — Degree Mode

sin(30°)  = 0.5
cos(60°)  = 0.5
tan(45°)  = 1
sin(90°)  = 1
cos(180°) = -1

Inverse functions:
arcsin(0.5) = 30°
arccos(0.5) = 60°
arctan(1)   = 45°

Trigonometric Functions — Radian Mode

sin(π/6)  = 0.5
cos(π/3)  = 0.5
tan(π/4)  = 1
sin(π/2)  = 1
cos(π)    = -1

Expression: sin(π/4)^2 + cos(π/4)^2
Result: 1  (Pythagorean identity)

Logarithms and Exponentials

Natural logarithm:
  ln(e)    = 1
  ln(1)    = 0
  ln(100)  = 4.6052

Base-10 logarithm:
  log(10)  = 1
  log(100) = 2
  log(1000)= 3

Exponential:
  e^1      = 2.71828
  e^2      = 7.38906
  10^3     = 1000

Inverse relationship:
  e^(ln(5)) = 5
  ln(e^3)   = 3

Factorial and Combinations

Factorial:
  5! = 120
  10! = 3,628,800
  0! = 1

Combinations (n choose k):
  C(10, 3) = 10! / (3! × 7!) = 120
  C(52, 5) = 2,598,960  (poker hands)

Permutations:
  P(10, 3) = 10! / 7! = 720

Hyperbolic Functions

sinh(1) = 1.1752
cosh(1) = 1.5431
tanh(1) = 0.7616

Identity: cosh²(x) - sinh²(x) = 1
  cosh²(1) - sinh²(1) = 1.5431² - 1.1752² = 1 ✓

Statistical Functions

Calculate statistics for a dataset:

Dataset: 12, 15, 18, 22, 25, 28, 31, 35

Mean:              23.25
Median:            23.5
Mode:              (no mode — all values unique)
Range:             23 (35 - 12)
Variance:          52.44
Standard deviation: 7.24
Min: 12, Max: 35

Complex Numbers

Addition:
  (3 + 4i) + (1 + 2i) = 4 + 6i

Multiplication:
  (3 + 4i) × (1 + 2i) = 3 + 6i + 4i + 8i²
                       = 3 + 10i - 8
                       = -5 + 10i

Magnitude (modulus):
  |3 + 4i| = √(3² + 4²) = √25 = 5

Polar form:
  3 + 4i = 5∠53.13°

Euler's formula:
  e^(iπ) + 1 = 0

Number Base Conversion (Programmer Mode)

Decimal 255:
  Binary:      11111111
  Octal:       377
  Hexadecimal: FF

Decimal 42:
  Binary:      101010
  Octal:       52
  Hexadecimal: 2A

Bitwise operations on 12 (1100) and 10 (1010):
  AND: 1100 & 1010 = 1000 = 8
  OR:  1100 | 1010 = 1110 = 14
  XOR: 1100 ^ 1010 = 0110 = 6
  NOT: ~1100 = ...11110011 (two's complement)

Matrix Operations

Matrix A:        Matrix B:
  [2  3]           [1  0]
  [1  4]           [2  3]

A × B:
  [2×1+3×2  2×0+3×3]   [8   9]
  [1×1+4×2  1×0+4×3] = [9  12]

Determinant of A:
  det(A) = (2×4) - (3×1) = 8 - 3 = 5

Inverse of A:
  A⁻¹ = (1/5) × [4  -3]  =  [0.8  -0.6]
                 [-1  2]     [-0.2  0.4]

Calculation History

Multi-step calculation using history:

Step 1: sin(30°) = 0.5
Step 2: cos(60°) = 0.5
Step 3: 0.5 + 0.5 = 1.0  (click previous results to reuse)
Step 4: √1.0 = 1.0

History shows all steps — click any result to use it in a new calculation.

• Trigonometric functions in degree or radian mode
• Logarithms (ln, log), exponentials, and power functions
• Factorial, combinations, and permutations
• Hyperbolic functions (sinh, cosh, tanh)
• Statistical functions: mean, median, standard deviation
• Complex number arithmetic and polar form conversion
• Number base conversion and bitwise operations (programmer mode)
• Matrix operations: multiplication, determinant, inverse