Calculate hourly fuel use from fuel quantities and elapsed operating time.
Gallons Per Hour Consumption Calculator
Results
Consumption Rate
0
Calculated Fuel
0
Start Fuel Load
0
Full Fuel Load Potential
0
Trip Start Fuel (AvGas)
0
Trip Start Fuel (Jet A)
0
Table of Contents
1
What is Gallons Per Hour Consumption?
2
How to Use This Calculator
- Enter or select Capacity of fuel in Gallons, Elapsed trip time in hours, Starting Fuel In Gallons, Ending Fuel In Gallons.
- Check the unit beside each measurement. For a percentage or rate, use the scale and time period stated in the form.
- Choose Calculate, then compare the output with the formula and example below. If you change a value or option, calculate again to update the result.
3
Formula Used
GPH = fuel consumed/elapsed hours
4
Variables Explained
| Input | What it means |
|---|---|
| Capacity of fuel in Gallons | Use the measured or stated value for this item, with the unit or category shown beside the field. |
| Elapsed trip time in hours | The whole-hour part of a duration, unless the form requests decimal hours. |
| Starting Fuel In Gallons | Use the measured or stated value for this item, with the unit or category shown beside the field. |
| Ending Fuel In Gallons | Use the measured or stated value for this item, with the unit or category shown beside the field. |
5
Worked Example
Using 12 gallons over 3 hours gives 4 gallons per hour.
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Why Use This Calculator?
Use the formula and worked example to check the relationship between the input and output before carrying the result into a longer calculation.
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Common Mistakes
- Tank capacity is not fuel consumed; use the actual amount burned over the measured interval.
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Frequently Asked Questions
Should I round numbers before calculating?
Keep the original input precision through the calculation and round the final answer to the precision you need. Rounding an intermediate result can change later steps.
Why can a manual calculation differ slightly?
Check the operation, units, signs and rounding first. Equivalent fractions or expressions can look different while representing the same value.
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Sources & References
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