Fuel & Tanks
Propane Usage Calculator
Estimate how much propane your home, appliances, or generator will use per day, month, and heating season. Free calculator with appliance presets — no signup required.
Frequently asked questions
How many gallons of propane does a house use per month?
A home that heats with propane typically uses 80–250 gallons per month in winter and far less in summer. The exact figure depends on home size, insulation, climate, and which appliances run on propane — heating dominates everything else.
How much propane does a furnace use per day?
A propane furnace burns roughly 1–2 gallons per hour while actively running. Over a cold winter day it cycles on and off, averaging about 3–5 gallons per day for a typical home — more for larger or poorly insulated homes.
How long does a 100-lb propane tank last?
A 100-lb cylinder holds about 23.6 gallons of propane. For a gas range that’s many months; for a space heater running several hours a day it might last a few weeks. Use the calculator above with your appliances to get a specific estimate.
How much propane does a water heater use?
A standalone propane water heater uses roughly 0.5–0.8 gallons per day, or around 200–300 gallons per year for an average household — a small fraction of what home heating consumes.
Why is my propane usage higher than the estimate?
Textbook BTU averages assume typical runtime and weather. A cold snap, an aging furnace, poor insulation, or a thermostat set a few degrees higher can all push real usage well above the estimate — which is why tracking your actual readings beats any table.