Advanced Calculators & Conversion Charts
Ohm's Law
Save time with this quick tool to find your circuit values.
LED Series Resistor
Calculate appropriate resistance so your LEDs don’t burn out prematurely.
Resistor Colour Code
Access a convenient, standardised resistance table.
Time Constant
Voltage x Capacitance x Load Resistance
Battery Life
How much life is in that battery based on its use?
Pressure
The pressure is on when you need crucial calculations. From Kilopascals to pounds per square inch, use this easy tool.
Basic Calculators & Conversion Charts
Mass and Weight
Move seamlessly from ounces to pounds to grams.
Energy
BTUs, Joules, and kWh - dynamically computed as you type!
Length
Inches? Feet? Yards? Miles? Meters? Metres? We've got you covered.
Volume
Assure your volume conversions are always accurate. Use this easy calculator to quickly convert across cups, quarts, gallons, millilitres and litres.
Temperature
For any critical temperature analysis, this calculator helps you get your job done faster.
Power
Get your power converted down to a base number, quickly and easily.
Decimal > Fraction
Turn any decimal value into its simplified fraction form.
