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Scientific Calculator

Full-featured scientific calculator with trigonometry, logarithms, factorial, and more

Scientific Calculator

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Quick summary

A scientific calculator extends a basic calculator with mathematical functions including trigonometry (sin, cos, tan), inverse trig, logarithms (log, ln), square root, powers, and constants like π and e. This calculator uses degrees for trigonometric functions.

Reviewed by Simple Calculators TeamLast reviewed

How to use this calculator

  1. Enter the inputs requested by the calculator.
  2. Choose the units or options that match your situation and review the assumptions.
  3. Run or update the calculation to see the result.
  4. Review the result, breakdown, and formulas shown on the page.
  5. Check the inputs, units, dates, and limitations before saving or sharing the result.

Scientific Functions Reference

Trigonometric Functions

sin⁡(θ),cos⁡(θ),tan⁡(θ)(degrees)\sin(\theta), \cos(\theta), \tan(\theta) \quad (\text{degrees})
θ
Angle in degrees
sin
Opposite / Hypotenuse
cos
Adjacent / Hypotenuse
tan
Opposite / Adjacent

Worked example

sin(30°)

Given
θ = 30°
Calculation
sin⁡(30°)\sin(30°)
Result
= 0.5

Logarithms

log⁡10(x)ln⁡(x)=log⁡e(x)\log_{10}(x) \qquad \ln(x) = \log_e(x)
log
Base-10 logarithm
ln
Natural logarithm (base e ≈ 2.71828)

Worked example

log(1000)

Given
x = 1000
Calculation
log⁡10(1000)\log_{10}(1000)
Result
= 3

Factorial

n!=n×(n−1)×⋯×2×1n! = n \times (n-1) \times \cdots \times 2 \times 1
n
Non-negative integer

Worked example

5!

Given
n = 5
Calculation
5!=5×4×3×2×15! = 5 \times 4 \times 3 \times 2 \times 1
Result
= 120

Frequently asked questions

Does this calculator use degrees or radians?

This calculator uses degrees for trigonometric functions. So sin(90) = 1, cos(0) = 1, etc. If you need radians, convert first: degrees × π/180.

What is the difference between log and ln?

log (or log₁₀) is the base-10 logarithm: log(1000) = 3. ln is the natural logarithm with base e ≈ 2.71828: ln(e) = 1, ln(7.389) ≈ 2.

How do I calculate 2 to the power of 10?

Enter "2^10" and press =. The ^ symbol is the power operator. This gives 1024. You can also type complex expressions like "2^10 + 3^5" = 1024 + 243 = 1267.

What is the Order of Operations?

PEMDAS/BODMAS: Parentheses first, then Exponents, then Multiplication/Division (left to right), then Addition/Subtraction. Use parentheses to control evaluation order.

Key terms

Radians vs Degrees
Two units for measuring angles. 360° = 2π radians. This calculator uses degrees.
e (Euler's number)
The base of natural logarithms, ≈ 2.71828. The natural exponential function is eˣ.
π (Pi)
The ratio of a circle's circumference to its diameter, ≈ 3.14159265.
Factorial
n! = product of all positive integers up to n. 5! = 120. 0! = 1 by convention.

Methodology, sources & limitations

This page shows the formula, assumptions, and limitations used for this estimate. Rates, thresholds, and other time-sensitive inputs can change, so verify them against the relevant official source before relying on a result.

For our review approach and the primary sources we consult, see the methodology and source policy. If you spot an outdated figure or formula, please contact us with a correction.