# Distance between Nanyang (NNY) and Haiphong (HPH)

Flight distance from Nanyang to Haiphong (Nanyang Jiangying Airport – Cat Bi International Airport) is 912 miles / 1468 kilometers / 793 nautical miles. Estimated flight time is 2 hours 13 minutes.

Driving distance from Nanyang (NNY) to Haiphong (HPH) is 1116 miles / 1796 kilometers and travel time by car is about 19 hours 40 minutes.

## Map of flight path and driving directions from Nanyang to Haiphong.

Shortest flight path between Nanyang Jiangying Airport (NNY) and Cat Bi International Airport (HPH).

## How far is Haiphong from Nanyang?

There are several ways to calculate distances between Nanyang and Haiphong. Here are two common methods:

Vincenty's formula (applied above)
• 912.355 miles
• 1468.294 kilometers
• 792.815 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
• 914.807 miles
• 1472.239 kilometers
• 794.945 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).

## Airport information

A Nanyang Jiangying Airport
City: Nanyang
Country: China
IATA Code: NNY
ICAO Code: ZHNY
Coordinates: 32°58′50″N, 112°36′53″E

B Cat Bi International Airport
City: Haiphong
Country: Vietnam
IATA Code: HPH
ICAO Code: VVCI
Coordinates: 20°49′9″N, 106°43′29″E

## Time difference and current local times

The time difference between Nanyang and Haiphong is 1 hour. Haiphong is 1 hour behind Nanyang.

CST

+07

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 145 kg (319 pounds).

## Frequent Flyer Miles Calculator

Nanyang (NNY) → Haiphong (HPH).

Distance:
912
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
912

Round trip?