SE Reactor Fuel Duration Estimator
Enter your reactor configuration and uranium stockpile to see total power capacity and how long your fuel will last. Reactors only burn fuel proportional to demand — idle ships use almost no uranium.
Reactor Configuration
300 MW each
15 MW each
1 MWh per kg uranium ingot
Total Power Capacity
300.0 MW
Duration at 50% Load
40 min
Duration Comparison
At 25% Load
1.3 hrs
At 50% Load
40 min
At 100% Load
20 min
Tip: Reactors only consume uranium equal to actual power demand, not their rated max. A 300 MW reactor running at 10% load uses only 30 MW worth of uranium — significantly extending fuel life.
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