🔬 Scientific Calculator

Online scientific calculator

For homework, engineering problems or quick conversions, this scientific calculator handles everything a classroom calculator does: sine, cosine and tangent (in degrees or radians) and their inverses, logarithms to any base, powers and roots, factorials, π and e, with proper operator precedence and brackets. Results update as you type, and a history list keeps your recent calculations — tap one to reuse it.

How to use it

1. Tap the keys or type an expression, for example 2^10 + sqrt(144).
2. Switch between DEG and RAD for trigonometry.
3. Press = to save the result to history; Ans reuses the last answer.

Order of operations

Brackets → powers and roots → × ÷ % → + −

Examples

• sin(30) + cos(60) = 1 (in degrees).
• log(2, 1024) = 10, and ln(e^3) = 3.
• 5! = 120, and 2^3^2 = 512 (powers work right to left).
• The height of a 10 m ladder leaning at 60°: 10 sin(60) ≈ 8.66 m.

For fractions, use the fraction calculator; for percentages, thepercentage calculator.