Fan running cost calculator
See what your fan actually costs to run overnight and over summer.
8 hours
Per night
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Per week
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Summer (90 days)
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Default electricity rate is the approximate Ofgem price cap unit rate. Change it to match your tariff. Typical fans: budget tower fan ~45W, DC pedestal ~10โ20W, Dyson AM07 ~40W, portable air cooler ~55W. Fan guide โ