OddStuff Tools / Electricity

What is your meter trying to tell you?

Enter the imp/kWh value printed on your meter, count the LED pulses, and estimate the power being used.

Power Meter Calculator

Meter Constant(imp/kWh)

Choose the value printed on your meter. Do not guess.

Blink Count

Time (seconds)

Rate per kWh (your currency) — optional

Power (W) = 3,600,000 × pulses ÷ (imp/kWh × seconds).

Example: 32 pulses over 36 seconds on a 3200 imp/kWh meter correspond to 1000 W.

Observe the meter’s LED and label only. Do not open the meter or touch wiring.