Convert 1 Kilometer to Nanometer

1 km (kilometer) is equal to 1,000,000,000,000 nm (nanometer). To convert from kilometer to nanometer, multiply by 1,000,000,000,000 or divide by 0.000000000001.

• 1 km × 1000000000000 = 1000000000000 nm
• 1 km ÷ 1.0E-12 = 1000000000000 nm