Winter Heating Cost Calculator
Find out exactly what your room heater costs to run this winter. Pick a heater type, enter your daily usage and your electricity or gas tariff, and get instant daily, monthly and seasonal costs — plus a side-by-side comparison of heater types and practical tips to cut the bill. Everything runs in your browser.
Your heater and usage
Check your latest bill for your per-unit rate including taxes.
Check your gas bill for the per-MMBTU rate.
Your estimated heating cost
Monthly cost
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0 kWh per month
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kWh per day
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Cost per day
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Season energy (4 months)
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Season cost (4 months)
Compare heater types
Monthly cost for each heater type at 6 hours per day and 30 days per month, using your tariffs above.
| Heater type | Input | Monthly energy | Monthly cost |
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5 ways to cut your heating bill
- Use a timer or thermostat. Heating an empty room is pure waste — run the heater only when someone is in the room and switch it off 30 minutes before bed.
- Seal doors and windows. Cold air leaking in forces the heater to work much harder. A simple door draft stopper and sealed window gaps can cut heat loss a lot.
- Heat the room, not the house. Close the doors of unused rooms and use a smaller heater for one room instead of heating the whole home.
- Lower the setting once warm. Oil radiators and convectors keep giving off heat after you turn them down — start on high, then drop to low or medium.
- Consider a heat pump. An inverter air conditioner in heating mode gives about 3 units of heat per unit of electricity, so it can cost one third of a fan heater for the same warmth.
Frequently asked questions
A heat pump (inverter air conditioner in heating mode) is usually cheapest because it moves heat instead of making it, delivering about 3 units of heat for each unit of electricity. Oil-filled radiators cost less than fan heaters for long hours because you can run them on a lower setting once the room is warm.
Enter the per-unit (per kWh) rate from your latest electricity bill, including taxes if you want the true cost. In Pakistan winter residential tariffs are commonly around Rs 40 to Rs 60 per kWh depending on the slab and taxes, so check your own bill for the exact figure.
Gas heater cost is based on its gas consumption in BTU per hour and your gas price per MMBTU from your gas bill. One MMBTU equals one million BTU, so monthly MMBTU equals BTU per hour times hours per day times days, divided by one million.
The seasonal figure covers 4 winter months, about 120 days of heating, which matches the typical heating season in most of Pakistan from December through March.