From heating your home to cooking dinner, understand exactly what your gas spending powers in the real world.
Ever wondered how quickly £10 worth of gas disappears in your home? The answer varies dramatically depending on what you're using it for. Running your central heating for an hour costs vastly different to taking a hot shower, yet both draw from the same gas supply.
This tool helps you understand exactly what different amounts of gas money can power in your household. Whether you're budgeting, comparing tariffs, or just curious about where your money goes, seeing these breakdowns in real terms makes gas consumption much clearer.
Current gas prices (January 2026): Most households pay around 6p for each unit (kWh) of gas under the Ofgem price cap (Jan-Mar 2026). You can adjust this in the calculator if you're on a different tariff.
With of gas, you can power:
Here's what £10 can power across different household activities, based on the current price cap rate (Jan-Mar 2026):
The most striking revelation for most households is how quickly gas disappears when heating your home. A typical combi boiler running at full capacity uses approximately £1.50 per hour at current prices. This means:
Of course, boilers don't run continuously—they cycle on and off to maintain temperature. In a well-insulated home, the boiler might only actually fire up for 30-50% of the time your heating is "on", significantly reducing costs. But these figures show why heating dominates winter gas bills.
Hot water consumption offers better value than continuous heating, but still represents a significant portion of gas use:
Showers vs Baths: An 8-minute shower typically costs around 5p, while filling a full bath costs approximately 25p. That's a 5x difference—something to consider if you're looking to reduce gas consumption.
For a family of four taking one shower each per day, that's around £1.40 per week or about £73 per year just on showering. Heating water for washing up, laundry, and general use adds considerably more.
Gas cooking is relatively economical compared to heating:
Even heavy cookers typically spend less than £10-15 per month on cooking gas, making it a relatively small portion of overall gas consumption for most households.
Important note: These calculations give you a good estimate, but your actual usage will vary. Things like how efficient your appliances are, how old your boiler is, how well insulated your home is, and your personal habits all make a difference. Always check your own meter readings for accurate information about your gas use.
Understanding these costs helps you see where you can make the biggest savings:
These calculations are based on typical gas usage for common household appliances:
We use the January 2026 Ofgem price cap rate as the default price. Your actual costs may vary based on your specific tariff, your boiler's efficiency, and how you use your appliances.