The Overview Effekt

Expanse Delta-v Calculator

How long would it take to reach nearby stars with a drive similar to the Epstein Drive from The Expanse?

Select Target Star

Delta-v: 72,000 km/s

1,000 km/s

200,000 km/s

Journey Phases

Flight plan:Accelerate → Cruise → Decelerate
Acceleration:0 m/s²
Acceleration phase:0 months
Coast phase:0 months
Deceleration phase:0 months
Phase ratio:0% coasting

Trip to Tau Ceti

v0.3Source Code

This calcuator tells you how long it would take to get to interstellar destinations with certain ammounts of Delta-v based on the metrics from the 100 year proposed journey of the Nauvoo in The Expanse using fictional Epstein fusion drives. The metrics: It uses 72,000 km/s of Delta-v to arrive within 100 years. How you get that much Delta-v is up to you. The math on this is a little sketchy because it's simplifying some things, and because I'm not a rocket scientist and used Claude Sonnet to write most of this. if you find any mistakes. Canon specs from here and here.