Jetpack for Brainrots Fuel Calculator
Plan your flight route before launching. Enter your stats to check if you can reach a target island and return safely.
How to Use This Calculator
Enter the approximate distance to your target island in meters, your current flight speed level, total fuel capacity percentage (100% is base, higher with upgrades), and the reserve percentage you want to keep for the return trip.
The calculator estimates one-way fuel cost based on speed efficiency and compares it against your usable fuel (capacity minus reserve). For detailed fuel management strategies, see our Fuel Management Guide.
Island Distance Reference
| Island Tier | Approx. Distance | Fuel Cost |
|---|---|---|
| Starter | 100-200m | 10-15% |
| Low | 200-350m | 15-20% |
| Mid | 350-500m | 25-35% |
| High | 500-700m | 40-50% |
| Peak | 700-900m | 50-60% |
| Apex | 900-1200m | 55-65% |
Frequently Asked Questions
How accurate is the fuel calculator?
The calculator uses approximate fuel drain rates based on community testing. Add 10% buffer for guard evasion on high-tier islands.
What reserve percentage should I use?
We recommend 30% reserve for safe round trips. Use 20% only on familiar routes with no guards.
Does speed affect fuel consumption?
Higher speed reduces total flight time, making fuel usage more efficient per distance traveled.