How many km is 1 AU?
1 AU = 149,597,871 km
It is 149,597,871 km, so saying 149,597,871 km is fine — rounding is within 0.5%.
And how many AU is 1 km?
1 km = 0 AU
Formula: km = AU × 149,597,870.7
AU to km around this value
0.1 AU14,959,787km
0.2 AU29,919,574km
0.3 AU44,879,361km
0.4 AU59,839,148km
0.5 AU74,798,935km
0.6 AU89,758,722km
0.7 AU104,718,509km
0.8 AU119,678,297km
0.9 AU134,638,084km
1 AU149,597,871km
1.1 AU164,557,658km
1.2 AU179,517,445km
1.3 AU194,477,232km
1.4 AU209,437,019km
1.5 AU224,396,806km
1.6 AU239,356,593km
1.7 AU254,316,380km
1.8 AU269,276,167km
1.9 AU284,235,954km
2 AU299,195,741km