Real utility rates · every formula published
What does it actually cost to run?
Straight answers on EV charging, home heating and appliance costs. No sign-up, no email, no guessing — and we tell you when the answer is "don't bother".
- 12free calculators
- 0sign-ups required
- 100%of formulas published
- 2026-09-06rates last reviewed
Most used calculators
Hover a card to see what it answers
- Electricity bill estimator Build up your whole monthly bill, appliance by appliance.
- EV charging cost What it costs to charge at home, at public chargers, or a mix of both.
- Appliance running cost What any appliance costs per hour, month and year on your tariff.
- EV vs gas running cost Side-by-side fuel costs — including the cases where the EV loses.
- Solar panel payback How many years until a solar array pays for itself — honestly.
- Heat pump vs furnace Which actually costs less to run on your rates — including when gas wins.
Why the numbers here differ from other sites
Most running-cost calculators quietly ignore the things that actually move the answer. We don't, because those details are usually the difference between a sensible decision and an expensive one.
- Charging losses are counted. Roughly 10% of the electricity your EV draws never reaches the battery. Calculators that skip this understate your real cost by about a tenth.
- We show when the answer is "no". An EV charged only at fast chargers can genuinely cost more per mile than an efficient hybrid. A heat pump isn't always cheaper than gas. We say so.
- Every formula is published. Our methodology page lists every assumption and its source, so you can check our work or substitute your own figures.