# How is my number worked out?

Canonical: https://senseible.earth/help/how-is-my-number-worked-out

The quantity on your bill × a published emission factor.

- Grid electricity, India: 0.710 kg CO₂ per kWh (CEA)

1. Every line shows the factor used, so you can check it.
2. No quantity on the bill means no figure. Gaps are never filled with guesses.

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