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How much does it cost to run a hot tub?
A hot tub costs about £2.11 a day, or £768.54 a year.
Use varies a lot with insulation, cover and outside temperature. Inflatable tubs in cold weather can reach the top of the range.
Work out your cost
The energy label or manual gives kWh per cycle or per year. Divide a yearly figure by 365 for kWh per day.
Low, typical and high running costs
Using switched on all day.
| Rating | Unit cost | Per week | Per year | |
|---|---|---|---|---|
| Low | 4 kWh a day | £1.05 / day | £7.37 | £384.27 |
| Typical | 8 kWh a day | £2.11 / day | £14.74 | £768.54 |
| High | 20 kWh a day | £5.26 / day | £36.85 | £1,921.36 |
How it compares
| Appliance | Typical use | Per day | Per month |
|---|---|---|---|
| Storage heater | 7 hours a day | £2.14 | £65.15 |
| Hot tub | switched on all day | £2.11 | £64.05 |
| Oil-filled radiator | 4 hours a day | £1.47 | £44.83 |
| Fan heater | 3 hours a day | £1.26 | £38.43 |
| Convector heater | 4 hours a day | £1.18 | £36.03 |
| Immersion heater | 1.5 hours a day | £1.18 | £36.03 |
How we work it out
Cost per day = kWh per day × price per kWh. 8 kWh × 26.32p = £2.11.
The low, typical and high figures are for models sold in the UK, taken from the sources below. Your own appliance may differ, so check its rating plate or energy label for the most accurate figure.
Sources
- Ofgem: changes to the energy price cap, 1 October to 31 December 2026
- Household Money Saving: what it costs to run a hot tub (measured use)
- Ideal Home: how much does it cost to run a hot tub?
Questions
How much electricity does a hot tub use?
Typically 4 to 20 kWh a day.
How much does a hot tub cost per year?
About £768.54 a year at 26.32p per kWh, assuming it is on all the time.
Where does the electricity price come from?
We use the Ofgem price cap average for Great Britain, paying by Direct Debit: 26.32p per kWh for 1 Oct 2026 to 31 Dec 2026. Electricity rate includes 0% VAT, which applies from 1 October 2026 to 31 March 2027. Storage heater and EV pages use an off-peak rate instead. Your own tariff may be higher or lower, so check your bill and enter your rate in the calculator.