Calculators & Conversion Charts

Farnell element14's online conversion calculators and conversion tables provide the conversion ratios you need for your everyday calculations.

Whether you're trying to move from imperial measurements to metric, solve for Ohm's law, or make sure you've got the correct weight, these tools are designed to help.

Battery Life

Battery Life

How much life is in that battery based on its use?

Battery Life Calculator
Capacitor

Capacitor Conversion

Convert between uF, nF and pF.

Capacitor Conversion Chart
Energy

Energy

BTUs, Joules, and kWh - dynamically computed as you type!

Energy Calculator
Fractions

Fractions and Decimal

Turn any decimal value into its simplified fraction form.

Fraction > Decimal Conversion
Battery Life

LED Series Resistor

Calculate appropriate resistance so your LEDs don’t burn out prematurely.

LED Series Resistor Calculator
Length

Length

Inches? Feet? Yards? Miles? Meters? Metres? We've got you covered.

Length Calculator
Mass and Weight

Mass and Weight

Move seamlessly from ounces to pounds to grams.

Mass and Weight Calculator
Metric/Imperial Conversion

Metric and Imperial

Common Metric and Imperial conversion ratios and calculator.

Metric and Imperial Conversion Calculator
Ohm's Law

Ohm's Law

Save time with this quick tool to find your circuit values.

Ohm's Law Calculator
Power

Power

Get your power converted down to a base number, quickly and easily.

Power Calculator
Pressure

Pressure

Convert millibars to kilopascals and vice versa.

Pressure Calculator
Resistor Colour Code

Resistor Colour Codes

Access a convenient and standardised resistance table.

Resistor Colour Calculator
Temperature

Temperature

For any critical temperature analysis, this calculator helps you get your job done faster.

Temperature Calculator
Terms and Measurements

Terms and Measurements

Not sure about one of the terms in our calculators?

Terms and Measurements
Time Constant

Time Constant

Voltage x Capacitance x Load Resistance.

Time Constant Calculator
Volume Calculator

Volume Calculator

BTUs, Joules, and kWh - dynamically computed as you type!

Volume Calculator