📐 Roman Miles to Nautical Miles Converter

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Converted Value
199.582

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⚡ Roman Miles to Nautical Miles: the quick answer

1 mp = 0.798326 NM 1 Roman mile (mille passus) equals 0.798326 nautical miles

To convert Roman miles (milia passuum) to nautical miles, multiply the value by 0.798326. To go the other way, multiply nautical miles by 1.25262 to get Roman miles (milia passuum).

↔ Convert nautical miles to Roman miles (milia passuum) instead

🧮 Formula

Roman Miles to Nautical Miles
NM = mp × 0.798326
Nautical Miles to Roman Miles
mp = NM × 1.25262

Where

  • mp = the length in Roman miles (milia passuum)
  • NM = the length in nautical miles
Every unit here is defined by its length in meters, so the conversion factor is (meters per Roman mile (mille passus)) ÷ (meters per nautical mile).

📊 Roman Miles to Nautical Miles conversion table

Roman Miles (mp)Nautical Miles (NM)
1 mp0.798326 NM
2 mp1.59665 NM
5 mp3.99163 NM
10 mp7.98326 NM
20 mp15.9665 NM
50 mp39.9163 NM
100 mp79.8326 NM
500 mp399.163 NM
1,000 mp798.326 NM

✏️ Worked examples

Convert 25 Roman miles (milia passuum) to nautical miles

25 mp × 0.798326 = 19.9582 NM

Try this example →

Convert 250 Roman miles (milia passuum) to nautical miles

250 mp × 0.798326 = 199.582 NM

Try this example →

📘 About these units

Roman mile (mille passus) (mp). The Roman mile was 1,000 paces, about 1,478.5 m. Used in: Europe — Italy, Greece & ancient Rome.

Nautical mile (NM). A nautical mile is exactly 1,852 meters, based on one minute of latitude, and is used in shipping and aviation.

❓ Frequently asked questions

How many nautical miles are in one Roman mile (mille passus)?

There are 0.798326 nautical miles in one Roman mile (mille passus).

How do I convert Roman miles (milia passuum) to nautical miles?

Multiply the number of Roman miles (milia passuum) by 0.798326. For example, 10 Roman miles (milia passuum) equal 7.98326 nautical miles.

How many Roman miles (milia passuum) are in one nautical mile?

One nautical mile equals 1.25262 Roman miles (milia passuum).

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