Map of flight path and driving directions from Redmond to Portsmouth.
Shortest flight path between Roberts Field (RDM) and Portsmouth International Airport at Pease (PSM).
How far is Portsmouth from Redmond?
There are several ways to calculate distances between Redmond and Portsmouth. Here are two common methods:Vincenty's formula (applied above)
- 2483.293 miles
- 3996.473 kilometers
- 2157.923 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
- 2476.572 miles
- 3985.656 kilometers
- 2152.082 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).
Time difference and current local times
The time difference between Redmond and Portsmouth is 3 hours. Portsmouth is 3 hours ahead of Redmond.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 273 kg (602 pounds).
Frequent Flyer Miles Calculator
Redmond (RDM) → Portsmouth (PSM).