📐 Math Calculators
Free Math Calculators
Accurate, fast and free math calculators — solve any math problem instantly. No sign-up needed.
Racine Carrée Calculator
Find the square root of any number with step-by-step solution in French and English. Supports decimals, negatives and nth roots.
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Midpoint Calculator
Find the midpoint between two points instantly. Get step-by-step solution, distance, and visual graph. Works for 2D and 3D coordinates.
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Fraction Calculator
Add, subtract, multiply and divide fractions instantly. Supports mixed numbers, simplification and decimal conversion — with step-by-step solution.
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Percentage Increase Calculator
Find % change between two numbers, calculate new value, or find original value — with step-by-step formula and real-world examples.
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Ratio Calculator
Simplify ratios, solve proportions, split totals & convert to percentage. Supports 2 and 3-part ratios with step-by-step GCD breakdown.
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Proportion Calculator
Solve missing values, check direct and inverse proportions, and verify if four numbers are truly proportional — with step-by-step solutions.
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GCF and LCM Calculator
Find Greatest Common Factor and Least Common Multiple of 2 or 3 numbers with step-by-step prime factorization and Euclidean algorithm.
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Prime Factorization Calculator
Find prime factors, colorful factor tree, all divisors, GCF and LCM with step-by-step division, exponential form, and perfect square/cube detection.
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Mean, Median, Mode Calculator
Find mean, median, mode, range, variance, and standard deviation instantly with step-by-step solutions, frequency chart, and outlier detection.
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Slope Calculator
Find slope, angle, grade, distance, midpoint, and line equation — with live coordinate graph, grade classification, and step-by-step solutions.
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Pythagorean Theorem Calculator
Find hypotenuse, missing leg, or verify a right triangle — with angles, area, perimeter, live triangle visual, and Pythagorean triple detection.
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Standard Deviation Calculator
Find population and sample standard deviation, variance, CV, and Z-score with bell curve visualization, deviation table, and step-by-step solutions.
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Free Online Math Calculators
CalcVelo provides a growing collection of free online math calculators designed for students, teachers, and professionals. Whether you need to calculate a square root, find a midpoint, add fractions, or solve percentages — our tools give you instant, accurate results with step-by-step solutions.
All our math calculators are:
- 100% free — no subscription or sign-up required
- Mobile friendly — works perfectly on any device
- Accurate — based on verified mathematical formulas
- Educational — step-by-step solutions included
More math calculators are being added regularly. Bookmark this page to stay updated!