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Energy

Small changes. A more efficient everyday.

Electricity cost calculator

Estimate energy use from actual operating power and hours. Enter your own tariff; this is not a national average or a complete utility bill.

EV charging cost calculator

Include charging losses when estimating the electricity cost and approximate charging time. Actual power can taper.

Estimate electricity use from your own tariff

Calculate kWh from average power and operating time without inventing an Iraqi household tariff.

Read the guide

Battery and UPS runtime

Estimate how long a battery or UPS can run a constant load. Include usable capacity and conversion losses; actual runtime varies with temperature, battery condition and discharge rate.

How long can a battery run a router and lights?

Estimate backup duration from usable watt-hours and a measured load. Compare router-only and lighting scenarios, with clear limits on the estimate.

Read the guide

Privacy choices

Tools work without analytics. You may allow interaction measurement without sending your financial inputs. You can manage or disable advertising below. Regional consent requirements still apply.