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Measured in statue miles, 5 degrees of latitude span 345.2 miles (555.8 km), based on 1 degree as 69.05 statute miles (111.2 km), or 60 nautical miles. ^[1][2]

Longitude varies in length according to degree of latitude.^[2] The following are a sampling of longitude lengths for selected latitudes, starting in the southern US and moving north:

• at 30 degrees North (area of Houston, Texas), a degree of longitude is 59.96 statute miles;^[2]
• at 35 degrees North (area of Albuquerque, NM), a degree of longitude is 56.73 statute miles;
• at 40 degrees North (Kansas/Nebraska border), a degree of longitude is 53.06 statute miles;
• at 45 degrees North (Montana/Wyoming border), a degree of longitude is 49.00 statute miles.^[2]

At 30 degrees North (near Houston), 5 degrees of longitude span 299.8 miles (555.8 km),^[3] and at 35 north (near Albuquerque), 5 degrees of longitude span 283.65 (~284 miles, 457 km).^[3]

1. ↑ ^{a b} "Weights and Measures" (conversion tables), Upper New England Coast (UNEC) Cyber Community, 1999, webpage: UNEC.
2. ↑ ^{a b c d e} "Latitude-Longitude Conversion to Feet", The Sentinel, February 2001, webpage: HyperNews-SAR-291 archive copy at the Wayback Machine.
3. ↑ ^{a b c} For 30 degrees North, 5 degrees = 5 * 59.96 = 299.80 miles; for 35 degrees North, 5 degrees = 5 * 56.73 = 283.65 miles; based on the longitude conversion factors (see: References).

• "Latitude-Longitude Conversion to Feet", The Sentinel, February 2001, webpage: HyperNews-SAR-291 archive copy at the Wayback Machine.