Electric Shower Running Cost Calculator
Instantly estimate how much your electric shower costs to run. Accurate, free energy cost calculator for UK households based on kW rating, duration, and energy tariffs.
Calculate Your Shower Costs
Enter your electric shower’s power rating, typical shower duration, and your electricity tariff below to get an instant breakdown of your running costs.
Cost Estimator
Enter your shower details to see the estimated energy cost
Check your shower unit (e.g., 8.5, 9.5, 10.5)
UK average is ~24.5p (check your bill)
Estimated Running Cost
Based on your inputted usage and tariff
Electric Shower Cost Reference Chart
Estimated cost of a 10-minute shower across common electric shower power ratings, assuming an electricity rate of 24.5p per kWh.
| Shower Power | Energy Used (10 mins) | Cost per Shower | Cost per Year (Daily) |
|---|---|---|---|
| 7.5 kW | 1.25 kWh | 31p | £112.44 |
| 8.5 kW | 1.42 kWh | 35p | £127.19 |
| 9.5 kW | 1.58 kWh | 39p | £141.94 |
| 10.5 kW | 1.75 kWh | 43p | £156.69 |
| 11.5 kW | 1.92 kWh | 47p | £171.44 |
Electric Shower Costs FAQ
Everything you need to know about calculating and reducing your electric shower running costs in the UK.
At an average electricity rate of 24.5p per kWh, a 10-minute shower with a standard 9.5kW electric shower costs approximately 39p per use. This totals around £2.73 per week (assuming daily use) or £142 per year.
Generally, no. Gas is significantly cheaper per kWh than electricity in the UK. While electric showers are highly efficient (nearly 100% of the energy heats the water, with no heat loss through pipes), the higher unit cost of electricity usually makes gas combi-boiler showers cheaper to run overall.
The formula is: Energy (kWh) = Power (kW) × Time (hours). For example, a 10.5kW shower used for 15 minutes (0.25 hours) consumes 2.625 kWh of electricity. Multiply this by your p/kWh rate to find the cost.
A higher kW shower uses more energy per minute, but it also heats water faster, potentially reducing your shower time. If you shower for the exact same duration, a 10.5kW shower will cost more than an 8.5kW shower. However, many users find they spend less time in the shower with a higher kW model, which can balance or even reduce the overall cost.