7 Calculators
Engineering & General Physics Calculators
Practical engineering and applied physics calculators for circuits, materials, fluids, and mechanical systems. Built for students, technicians, and working engineers.
Ohm's Law Calculator
Calculate Voltage, Current, Resistance, and Power.
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Voltage Drop Calculator
Calculate electrical voltage loss over distance per NEC guidelines.
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Resistor Color Code
Decode 4, 5, or 6-band resistor color codes.
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Horsepower Calculator
Calculate engine HP from torque, performance, or convert power units.
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Molarity Calculator
Calculate molarity, mass, volume, and dilutions.
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Wind Chill & Heat Index
Calculate apparent temperature from wind chill or heat index.
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Square Footage Calculator
Calculate area for rectangles, triangles, circles, and more.
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