Scientific Calculator

Advanced calculator with trigonometry, logarithms, and more

Last reviewed: June 2026How we build & verify

How it works

Covers the operations a four-function calculator leaves out: trigonometric and inverse trigonometric functions, logarithms in base 10 and base e, arbitrary powers and roots, factorials, and constants such as π and e. Expressions are evaluated by operator precedence rather than strictly left to right.

Notes

Angle mode decides the answer. sin(30) is 0.5 in degrees and −0.988 in radians, and a mode mismatch is by far the most common source of a wrong trig result.
Precedence runs parentheses, then exponents, then multiplication and division, then addition and subtraction. 2 + 3 × 4 evaluates to 14; a calculator returning 20 is chaining operations, not parsing an expression.
Unary minus against an exponent is a genuine ambiguity. Under the usual convention −3² is −9, because the exponent binds tighter than the sign. Write (−3)² when you mean 9.
Binary floating point cannot store 0.1 exactly, so a long chain of decimal arithmetic can finish at 0.30000000000000004 rather than 0.3. Round once at the end instead of after each step.

Most Searched Today

BMI Calculator Percentage Calculator Compound Interest Mortgage Calculator Loan EMI Calculator Currency Converter SIP Calculator Age Calculator Tip Calculator Length Converter Calorie Calculator Scientific Calculator

Frequently Asked Questions

It supports basic arithmetic, trigonometric functions (sin, cos, tan), logarithms (log, ln), exponents, square roots, factorials, and constants like pi and e.

Use the DEG/RAD toggle to switch angle modes. Degrees are used in everyday contexts (360° in a circle), while radians are standard in higher mathematics (2π in a circle).

Yes, this calculator follows PEMDAS/BODMAS: Parentheses, Exponents, Multiplication and Division (left to right), then Addition and Subtraction (left to right).

Yes. Enter numbers in scientific notation using the EXP or EE button. For example, 3.5 × 10⁸ can be entered as 3.5 EXP 8.

How it works

Notes

Angle mode decides the answer. sin(30) is 0.5 in degrees and −0.988 in radians, and a mode mismatch is by far the most common source of a wrong trig result.
Precedence runs parentheses, then exponents, then multiplication and division, then addition and subtraction. 2 + 3 × 4 evaluates to 14; a calculator returning 20 is chaining operations, not parsing an expression.
Unary minus against an exponent is a genuine ambiguity. Under the usual convention −3² is −9, because the exponent binds tighter than the sign. Write (−3)² when you mean 9.
Binary floating point cannot store 0.1 exactly, so a long chain of decimal arithmetic can finish at 0.30000000000000004 rather than 0.3. Round once at the end instead of after each step.

Scientific Calculator

How it works

Related Tools

Most Searched Today

Frequently Asked Questions

Scientific Calculator

How it works

Related Tools

Most Searched Today

Frequently Asked Questions