Unit Toolbox

Convert units and solve formulas with precision.

Built for technical professionals, students, and engineering teams.

Most used conversions

Length
Category: m
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Area
Category: m2
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Volume
Category: m3
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Pressure
Category: Pa
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Force / Load
Category: N
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Stress
Category: Pa
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Essential formulas

Ohm's Law
V = I * R
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Newton's Second Law
F = m * a
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Kinetic Energy
E = 0.5 * m * v²
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Ideal Gas Law
P * V = n * R * T
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Pythagorean Theorem
c = sqrt(a² + b²)
View formula
Popular tools
Unit toolbox for engineers.

1. Temperature - Celsius, Fahrenheit, Kelvin

2. Length - mm, cm, m, km, in, ft, yd, mi

3. Force / Load - N, kN, lbf, kip

Fast workflow for engineering
For engineers

1. Ohm's Law

2. Newton's Second Law

3. Kinetic Energy