Science Calculators
Free science calculators for Ohm's law, percent error, subnet, base conversion, and more. Accurate tools for students and engineers.
Subnet Calculator
Calculate network address, broadcast address, host range, and more from an IP and subnet mask.
Binary/Hex/Octal Converter
Convert numbers between binary, hexadecimal, octal, and decimal bases.
Exponent Calculator
Calculate any base raised to any power, including negative and fractional exponents.
Logarithm Calculator
Calculate logarithms in any base, including natural log and log base 10.
Percent Error Calculator
Calculate the percent error between an experimental value and a theoretical value.
Ohm's Law Calculator
Calculate voltage, current, resistance, and power using Ohm's Law.
Resistor Color Code Calculator
Decode 4-band and 5-band resistor color codes to find resistance value and tolerance.