What is used to calculate the mileage between duty stations?

• A. Defense Table of Official Distances
• B. Navy Distance Calculator
• C. Official Travel Distances Table
• D. Military Mileage Guide

Answer: (A)

Calculating the distance between duty stations uses the Defense Table of Official Distances. This is the official DoD reference that lists the mileage between military installations and other duty points, providing standardized, routable distances for travel orders and entitlements. It ensures consistent numbers across the services, reflecting published routes rather than straight-line distance and is updated as needed to stay current. When planning moves, temporary duty trips, or related allowances, the DTOD is the source you rely on to determine the official mileage. The other named resources aren’t the official DoD standard for computing travel distances, so they aren’t used to calculate mileage between duty stations.