Electricity Cost Calculator

Calculate how much it costs to run any appliance based on wattage and usage hours.

✓ Free to use ✓ Instant results ✓ Mobile friendly ✓ No sign-up needed

Appliance Wattage (W)

Hours Used per Day

Unit Price (p/kWh)

Cost per Day

Cost per Month

Cost per Year

kWh per Day

⚡ Monitor your energy use

How Electricity Costs Are Calculated

Cost = Wattage (kW) × Hours used × Unit price (p/kWh). UK average unit price is around 24p/kWh.

What is the average UK electricity price?+

As of 2025, the Ofgem price cap is around 24.5p/kWh. Check your bill for your exact rate.

How do I reduce my electricity bill?+

Switch to LED bulbs, use appliances at off-peak times, insulate your home, and consider solar panels.