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⚡ Nautical Miles to Roman Miles: the quick answer
1 NM = 1.25262 mp
1 nautical mile equals 1.25262 Roman miles (milia passuum)
To convert nautical miles to Roman miles (milia passuum), multiply the value by 1.25262.
To go the other way, multiply Roman miles (milia passuum) by 0.798326 to get nautical miles.
↔ Convert Roman miles (milia passuum) to nautical miles instead
🧮 Formula
Every unit here is defined by its length in meters, so the conversion factor is (meters per nautical mile) ÷ (meters per Roman mile (mille passus)).
📊 Nautical Miles to Roman Miles conversion table
✏️ Worked examples
Convert 25 nautical miles to Roman miles (milia passuum)
25 NM × 1.25262 = 31.3155 mp
Try this example →
Convert 250 nautical miles to Roman miles (milia passuum)
250 NM × 1.25262 = 313.155 mp
Try this example →
📘 About these units
Nautical mile (NM). A nautical mile is exactly 1,852 meters, based on one minute of latitude, and is used in shipping and aviation.
Roman mile (mille passus) (mp). The Roman mile was 1,000 paces, about 1,478.5 m. Used in: Europe — Italy, Greece & ancient Rome.
❓ Frequently asked questions
How many Roman miles (milia passuum) are in one nautical mile?
There are 1.25262 Roman miles (milia passuum) in one nautical mile.
How do I convert nautical miles to Roman miles (milia passuum)?
Multiply the number of nautical miles by 1.25262. For example, 10 nautical miles equal 12.5262 Roman miles (milia passuum).
How many nautical miles are in one Roman mile (mille passus)?
One Roman mile (mille passus) equals 0.798326 nautical miles.
🔗 More length conversions
All length units →
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