Convert 1 kilometer / square hour to mile / square second

1 km/h² (kilometer / square hour) is equal to 0.00000004794530804320987 mi/sec² (mile / square second). To convert from kilometer / square hour to mile / square second, multiply by 0.00000004794530804320987 or divide by 20,857,098.239910513.

• 1 km/h² × 4.794530804321E-8 = 4.794530804321E-8 mi/sec²
• 1 km/h² ÷ 20857098.239911 = 4.794530804321E-8 mi/sec²