Evaluate arithmetic expressions with brackets, powers, percentages and common functions.
Try an example
Load a ready-made sample into this tool and run it. Every result you see is calculated live by the tool itself — nothing here is a pre-written answer.
Sample: input: 12*8+5
How to Use
- Type an expression, such as (12 + 8) * 3.
- Use sqrt, sin, cos, log and ln where needed.
- Click Run to see the result.
What this scientific calculator does
This scientific calculator evaluates full arithmetic expressions rather than one operation at a time: type something like (12 + 8) * 3 and it applies the standard order of operations to the whole thing. Brackets, powers, percentages and common functions such as sqrt, sin, cos, log and ln are all supported, making it suited to homework, estimates and multi-step calculations.
How expressions are evaluated
The calculator reads the complete expression and resolves it in the standard order — brackets first, then powers, then multiplication and division, and finally addition and subtraction. Functions apply to the values inside the expression, so writing a calculation exactly as it appears on paper, brackets included, produces the intended result without breaking it into manual steps.
Good to know
Angles for sin, cos and tan are measured in degrees, not radians — a common source of unexpected answers if you were expecting radian mode. Results are computed in floating point, so very long decimals can show tiny rounding differences in the final places compared with exact arithmetic done by hand.
Frequently asked questions
Does it follow the order of operations?
Yes. Brackets first, then powers, then multiplication and division, then addition and subtraction — the convention taught in mathematics classes. A full expression therefore matches the answer from careful hand working.
Are the trig functions in degrees or radians?
Degrees. Sin, cos and tan read their input as degrees here, so sin(90) returns 1. If a problem is stated in radians, convert the angle to degrees before entering it.
Which functions are available?
Sqrt, sin, cos, tan, log and ln, alongside powers and percentages inside expressions. If an expression uses an unsupported function name, it cannot be evaluated and needs rewriting with the supported set.
How to use Scientific Calculator
- Type an expression, such as (12 + 8) * 3.
- Use sqrt, sin, cos, log and ln where needed.
- Click Run to see the result.
Limitations
Angles for sin, cos and tan are in degrees; results use floating-point maths, so tiny rounding errors can appear.