How far is Johnstown from Casper?
There are several ways to calculate distances between Casper and Johnstown. Here are two common methods:Vincenty's formula (applied above)
- 1435.621 miles
- 2310.408 kilometers
- 1247.520 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.Haversine formula
- 1431.983 miles
- 2304.553 kilometers
- 1244.359 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
Estimated flight time from Casper–Natrona County International Airport (CPR) to Johnstown–Cambria County Airport (JST) is 3 hours 13 minutes.
Time difference and current local times
The time difference between Casper and Johnstown is 2 hours. Johnstown is 2 hours ahead of Casper.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 168 kg (371 pounds).
Casper to Johnstown flight map.
Frequent Flyer Miles Calculator
Casper (CPR) → Johnstown (JST).