Scientific Calculator
evaluate scientific expressions with powers, roots, and parentheses
Math
Math Calculators
Solve core math problems quickly with clean formulas and step-ready outputs.
Fast math tools for arithmetic, algebra, probability, statistics, and number-system operations.
Tools in this category
Fraction Calculator
add, subtract, multiply, and divide fractions
Ratio Calculator
simplify ratios and compute equivalent scaled values
Average Calculator
calculate arithmetic mean from a list of numbers
Percent Error Calculator
measure percent error between expected and measured values
Exponent Calculator
compute powers for a base and exponent
Log Calculator
calculate logarithms for configurable bases
Binary Calculator
perform arithmetic operations in binary numbers
Hex Calculator
perform arithmetic operations in hexadecimal numbers
Base Converter
convert values between binary, octal, decimal, hexadecimal, and base-36
Probability Calculator
calculate probability from favorable and total outcomes
Standard Deviation Calculator
compute population or sample standard deviation
Permutation Combination Calculator
calculate nPr and nCr values
Percentage Difference Calculator
calculate percent difference between two values
Mean Median Mode Calculator
find central tendency metrics from a dataset
Prime Factorization Calculator
break an integer into prime factors
LCM GCF Calculator
calculate least common multiple or greatest common factor
Slope Calculator
calculate slope from two points
Quadratic Formula Calculator
solve quadratic equations and evaluate discriminant
Matrix Calculator
add or multiply matrices
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Category FAQ
How should I use the math calculators tools?
Start with one calculator, review the assumptions shown on the page, then compare with related tools for scenario planning.
Are these tools free to use?
Yes. Online Tools and Calculators is free and designed for practical educational and planning use.
Can I use these tools on mobile?
Yes. The pages are built mobile-first with large fields, clear labels, and keyboard-friendly controls.