Absolute Value Calculator
Calculate absolute values and expressions with fractions, roots, powers, logs, and trigonometry using a readable online calculator.
Absolute value calculator for nested math expressions
This absolute value calculator evaluates |x| and larger expressions with absolute-value bars.
Use it for simple values, fractions, trigonometric differences, and nested expressions where sign matters.
Features
- Absolute-value button for |x| input.
- Absolute values around fractions, powers, and functions.
- Readable 2D input for nested expressions.
- Real-number numeric results.
- Copy and history tools.
Example expressions
\left|-5\right|\left|\frac{-3}{4}\right|\left|\sin(30^\circ)-1\right|\sqrt{\left|-9\right|}\left|2-5\right|\left|\frac{1}{2}-\frac{3}{4}\right|
How to use this calculator
- Use the abs button or type vertical bars around the expression.
- Put the entire expression whose magnitude you need inside the bars.
- Press Enter to evaluate the real-number result.
Common input mistakes
- Do not leave one side of the absolute-value bar open.
- Use parentheses or bars around the full expression, not only the first term.
- Remember that absolute value does not make invalid operations such as log(-1) valid.
FAQ
What is absolute value?
For real numbers, absolute value returns the distance from zero.
Can I use absolute value with fractions?
Yes. Fractions can be placed inside absolute-value bars.
Can absolute value wrap functions?
Yes. Expressions such as |sin(30)-1| are supported.
Does |x| solve for x?
No. It evaluates numeric expressions and does not solve equations.