Length Converter
Type any value — all units update instantly

Quick conversions:

Length Unit Converter

This length converter lets you instantly convert between all major length and distance units used around the world. Just type a value in any field and all other units update automatically — no need to click a button.

Whether you're converting a recipe measurement, planning a trip, understanding your height in a different system, or working on a DIY project, this tool covers all common and scientific units.

Key Conversion Reference

1 kilometre (km) = 1,000 metres = 0.62137 miles
1 mile = 1.60934 km = 5,280 feet
1 metre (m) = 100 cm = 3.28084 feet = 39.3701 inches
1 foot = 12 inches = 30.48 cm
1 inch = 2.54 cm exactly
1 yard = 3 feet = 91.44 cm
1 nautical mile = 1.852 km = 1.15078 miles

How to use this converter

  1. Type any value in any unit field
  2. All other fields update instantly
  3. Use the Quick Conversion buttons for common lookups
  4. Click "Clear all" to reset

📘 Example Scenarios

Scenario 1 — Rahul checks his height for a visa form 📋

Rahul is 175 cm tall but a US visa form asks for height in feet and inches. He types 175 in the centimetre field and instantly sees 5 feet 8.9 inches — so he writes 5'9". No manual calculation needed.

Scenario 2 — Sarah plans a road trip 🚗

Sarah's GPS shows the distance is 250 miles but she wants to know it in kilometres for fuel planning. She types 250 in the miles field and instantly sees 402.3 km. At 10L/100km, she needs about 40 litres of fuel.

Frequently asked questions

Exactly 2.54 cm = 1 inch. This is the internationally standardised definition since 1959.
1 mile = 1.60934 km. To quickly estimate: multiply miles by 1.6 to get approximate kilometres.
A nautical mile (nmi) = 1.852 km = 1.15078 statute miles. It's based on one minute of latitude and is used in maritime and aviation navigation worldwide.