How to use
- Estimate how many hours the stove will actually run, not how many days the trip lasts.
- Enter the burn rate in ounces per hour from the stove's own figure or from a burn you timed.
- Press Calculate. The hero is ounces.
- Compare that weight with the canister you own. The page does not know how many ounces are left in a used canister.
How it's calculated
Ounces = hours × ounces per hour.
There is no efficiency factor hidden in the formula. A cold canister or a windy pad belongs in the rate you type, or in extra hours.
Worked example
Three hours at a half ounce per hour is 1.5 ounces. At 0.7 ounce per hour the same three hours is 2.1 ounces. A 4-ounce canister covers the first plan and not a much thirstier stove, which is why the rate is an input.
Assumptions
A steady rate for the hours you typed. Simmering and a full boil do not share a rate. If you use both, add two runs. White gas in milliliters is a different label. Convert it before you type.
FAQ
What rate should I type?
The one from the stove maker or from a test you ran with your pot. The box starts empty.
How do I convert grams per hour?
Divide grams by 28.35 to get ounces, then type that.
Does this include the canister weight?
No. It is the fuel burned. The steel can is part of pack weight if you put it on that page.
Is water planning the same?
No. The water planner is liters to carry. Fuel is what boils some of that water, and only if you typed the hours you will burn.