Astronomical Unit to Kilometer Converter
1 Astronomical Unit is equal to 149,597,870.7Kilometers (km). To convert astronomical units to kilometers, multiply the value by 149,597,870.7 or use the interactive formula breakdown and reference tables below.
Length Converter
-- Step-by-Step Mathematical Derivation
To convert any quantity from Astronomical Unit to Kilometer, multiply the quantity by the constant conversion factor 1.495979e+8.
To reverse the operation, multiply your Kilometer figure by 6.684587e-9 (or divide by 1.495979e+8).
- Identify the starting value in Astronomical Unit (AU).
- Apply the exact linear conversion factor:
1 AU = 1.495979e+8 km. - Multiply the input value by 1.495979e+8 to obtain the exact measurement in Kilometer (km).
- Verify precision against standard BIPM / NIST SP 811 statutory guidelines.
All-Units Instant Matrix
Printable Reference Cheat Sheet
Generate clean offline reference PDF tables for Length & Distance
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Academic & Research Citation Exporter
Cite this mathematical formula and conversion factor in research papers and wikis
@misc{ai_unit_converter_astronomical_unit_to_kilometer,
author = {AI Unit Converters Standards Board},
title = {Exact Astronomical Unit to Kilometer Conversion Factor and Mathematical Derivation},
year = {2026},
howpublished = {\url{https://aiunitconverters.com/length/au-to-km}},
note = {Derived from NIST Special Publication 811 and BIPM SI Brochure}
}📊Astronomical Unit to Kilometer Conversion Tables
| 1AU | 149,597,870.7km |
| 2AU | 299,195,741.4km |
| 5AU | 747,989,353.5km |
| 10AU | 1,495,978,707km |
| 15AU | 2,243,968,060.5km |
| 20AU | 2,991,957,414km |
| 25AU | 3,739,946,767.5km |
| 50AU | 7,479,893,535km |
| 75AU | 11,219,840,302.5km |
| 100AU | 14,959,787,070km |
| 250AU | 37,399,467,675km |
| 500AU | 74,798,935,350km |
| 1000AU | 149,597,870,700km |
| 5000AU | 747,989,353,500km |
| 10000AU | 1,495,978,707,000km |
| 1km | 0AU |
| 2km | 0AU |
| 5km | 0AU |
| 10km | 0AU |
| 15km | 0AU |
| 20km | 0AU |
| 25km | 0AU |
| 50km | 0AU |
| 75km | 0AU |
| 100km | 0AU |
| 250km | 0AU |
| 500km | 0AU |
| 1000km | 0AU |
| 5000km | 0AU |
| 10000km | 0.0001AU |
❓ Frequently Asked Questions: Astronomical Unit to Kilometer
How do you convert Astronomical Units to Kilometers?▼
1 Astronomical Unit is equal to 149,597,870.7 Kilometers. Multiply your input value in Astronomical Units by 149,597,870.7 to obtain the exact equivalent in Kilometers.
How many Kilometers are in 1 Astronomical Unit?▼
There are exactly 149,597,870.7Kilometers (km) in 1 Astronomical Unit (AU).
Are these calculations calibrated against official measurement standards?▼
Yes. All conversion factors on AI Unit Converters are calibrated and cross-verified against official BIPM SI Brochure (9th Edition), NIST SP 811, and ISO 80000 measurement metrology standards.