Convert 42 Picometer to Kilometer

42 pm (picometer) is equal to 0.000000000000042 km (kilometer). To convert from picometer to kilometer, multiply by 0.000000000000001 or divide by 1,000,000,000,000,000.

• 42 pm × 1.0E-15 = 4.2E-14 km
• 42 pm ÷ 1.0E+15 = 4.2E-14 km