Also available in our
Android app, with charts and full breakdown tables.
Rate this calculator
Was it useful? A quick star rating helps others — and you can leave a comment too.
Rate it:
★
★
★
★
★
⚡ Nautical Miles to Ramsden Chains: the quick answer
1 NM = 60.7612 rch
1 nautical mile equals 60.7612 Ramsden chains
To convert nautical miles to Ramsden chains, multiply the value by 60.7612.
To go the other way, multiply Ramsden chains by 0.0164579 to get nautical miles.
↔ Convert Ramsden chains 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 Ramsden chain).
📊 Nautical Miles to Ramsden Chains conversion table
✏️ Worked examples
Convert 25 nautical miles to Ramsden chains
25 NM × 60.7612 = 1,519.03 rch
Try this example →
Convert 250 nautical miles to Ramsden chains
250 NM × 60.7612 = 15,190.3 rch
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.
Ramsden chain (rch). The Ramsden or engineer's chain is 100 feet (30.48 m), used in engineering surveys.
❓ Frequently asked questions
How many Ramsden chains are in one nautical mile?
There are 60.7612 Ramsden chains in one nautical mile.
How do I convert nautical miles to Ramsden chains?
Multiply the number of nautical miles by 60.7612. For example, 10 nautical miles equal 607.612 Ramsden chains.
How many nautical miles are in one Ramsden chain?
One Ramsden chain equals 0.0164579 nautical miles.
🔗 More length conversions
All length units →
What people are saying
★★★★★
Anonymous · 02 Oct 2026
★★★★★
Anonymous · 01 Oct 2026
★★★★★
Anonymous · 28 Sep 2026