How many km is 250 AU?
250 AU = 37,399,467,675 km
It is 37,399,467,675 km, so saying 37,399,467,675 km is fine — rounding is within 0.5%.
And how many AU is 250 km?
250 km = 0 AU
Formula: km = AU × 149,597,870.7
AU to km around this value
70 AU10,471,850,949km
90 AU13,463,808,363km
110 AU16,455,765,777km
130 AU19,447,723,191km
150 AU22,439,680,605km
170 AU25,431,638,019km
190 AU28,423,595,433km
210 AU31,415,552,847km
230 AU34,407,510,261km
250 AU37,399,467,675km
270 AU40,391,425,089km
290 AU43,383,382,503km
310 AU46,375,339,917km
330 AU49,367,297,331km
350 AU52,359,254,745km
370 AU55,351,212,159km
390 AU58,343,169,573km
410 AU61,335,126,987km
430 AU64,327,084,401km
450 AU67,319,041,815km