
GenFuel – Generator Fuel Calc
Runtime & Cost Estimator
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Free
In-App Purchases
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About
How much fuel does your generator need? How long will it run on a full tank? What will it cost?
GenFuel gives you instant answers. Enter your generator's fuel consumption rate, set the runtime or available fuel, and get precise results — fuel needed, estimated runtime, and total cost in your local currency.
CALCULATE WITH CONFIDENCE
• Fuel Needed mode — enter hours, get liters and total cost
• Runtime mode — enter available fuel, get hours and minutes
• Adaptive price chips adjust around your base fuel price
• Typical consumption rates for 3 kW, 5 kW, and 7 kW generators
WORKS WITH YOUR CURRENCY
• 160+ currencies with smart regional fuel price detection
• Automatic price defaults based on your location
• Change currency anytime — your settings are remembered
DESIGNED FOR EVERY DEVICE
• Clean, intuitive interface that works on iPhone and iPad
• Three-column layout on iPad in landscape
• Full Dark Mode support
• VoiceOver accessible
FREE TO USE
• All features available for free
• Optional one-time purchase to remove ads
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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What's New in GenFuel
1.0.2
September 14, 2026
Hey there — the GenFuel team is back with fixes that make the numbers you rely on even more trustworthy. We tuned the price suggestion chips and the +/- stepper for currencies with smaller unit prices (like USD, EUR, and GBP) — they now offer real, useful options instead of collapsing into a single choice. We also corrected the default USD fuel price estimate, and gave the app a fresh new launch screen with our own logo. Thanks for keeping GenFuel in your generator toolkit — we're already working on what's next!
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In-App Purchases
$4.99
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