Converters & References
Conversions engineers actually reach for - wire gauge, capacitor codes and battery energy - each backed by the defining standard and a full reference table, not just a number box.
Convert the quantity, not just the label
A useful engineering conversion should preserve units, assumptions and precision. These tools show the relationship behind the result so you can distinguish an exact definition from a practical nearest-size substitution.
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Convert AWG and metric conductor size
Compare gauge, diameter, cross-sectional area and copper resistance.
Battery energyConvert mAh to Wh
Use capacity and nominal voltage to compare stored energy correctly.
Component markingDecode a capacitor code
Translate common printed codes into capacitance and tolerance.
Conversion and decoding tools
AWG to mm² Converter
ASTM B258Convert American Wire Gauge to diameter and cross-section and back, with copper resistance and the standard behind every…
Capacitor Code Calculator
IEC 60062Decode the markings on a ceramic, film or SMD capacitor into picofarads, nanofarads and microfarads - and convert…
mAh to Wh Calculator
Energy = charge x voltageConvert milliamp-hours (mAh) to watt-hours (Wh), or reverse Wh to mAh, using the battery's nominal voltage. The calculator…