Kilometers to Meters converter (km → m)
340,558 km = 340,558,000 m. 1 km = 1,000 m. Type any value below for an instant answer, or find your number in the conversion chart.
km to m formula
Worked example: 1 km = 1,000 m. The defining value behind this factor is documented on our length & distance standards page.
Kilometers to Meters chart
Includes standard reference values plus the specific numbers people search for most.
| Kilometers (km) | Meters (m) |
|---|---|
| 1 km | 1,000 m |
| 2 km | 2,000 m |
| 3 km | 3,000 m |
| 4 km | 4,000 m |
| 5 km | 5,000 m |
| 6 km | 6,000 m |
| 7 km | 7,000 m |
| 8 km | 8,000 m |
| 9 km | 9,000 m |
| 10 km | 10,000 m |
| 11 km | 11,000 m |
| 12 km | 12,000 m |
| 15 km | 15,000 m |
| 20 km | 20,000 m |
| 25 km | 25,000 m |
| 28 km | 28,000 m |
| 30 km | 30,000 m |
| 40 km | 40,000 m |
| 42 km | 42,000 m |
| 50 km | 50,000 m |
| 75 km | 75,000 m |
| 80 km | 80,000 m |
| 100 km | 100,000 m |
| 145 km | 145,000 m |
| 150 km | 150,000 m |
| 200 km | 200,000 m |
| 250 km | 250,000 m |
| 400 km | 400,000 m |
| 500 km | 500,000 m |
| 600 km | 600,000 m |
| 650 km | 650,000 m |
| 750 km | 750,000 m |
| 1000 km | 1,000,000 m |
| 1200 km | 1,200,000 m |
| 1500 km | 1,500,000 m |
| 4000 km | 4,000,000 m |
| 7000 km | 7,000,000 m |
| 10000 km | 10,000,000 m |
Most-searched km to m answers
1 km to m
1,000 m4 km to m
4,000 m2 km to m
2,000 m1000 km to m
1,000,000 m600 km to m
600,000 m4000 km to m
4,000,000 m10000 km to m
10,000,000 m15 km to m
15,000 m42 km to m
42,000 m150 km to m
150,000 m40 km to m
40,000 m400 km to m
400,000 mWhen to convert km to m
- ▸Height & body measurements — a person who is 340558 km tall is described as 340558 km in one country and the equivalent in m elsewhere on passports and medical records.
- ▸Room and furniture sizing — IKEA and international furniture retailers list dimensions in both km and m; converting 340558 km helps you check if a sofa or bed fits.
- ▸Fitness & running — race distances, treadmill settings and GPS watches let you toggle km/m; 340558 km on a 5K route reads differently in m.
- ▸DIY, drilling & construction — hardware standards (screws, pipes, lumber) are sold in km in some markets and m in others; a 340558 km cut needs the m value on a metric ruler.
- ▸Travel — road signs, airline seat pitch and hiking maps switch between km and m depending on country.
Common mistakes
- ✕Mixing US and international inches — since 1959 all inches are 25.4 mm exactly; older US "survey foot" values are slightly different.
- ✕Off-by-decimal errors: 1 cm = 10 mm, 1 m = 100 cm — a misplaced decimal turns a km into a wildly wrong m.
- ✕Confusing feet with yards (1 yd = 3 ft) in DIY calculations.
- ✕The US survey foot is not the international foot. The US survey foot was 1200/3937 m (about 0.30480061 m) — roughly 2 parts per million longer than the international foot of 0.3048 m. NIST retired it for new work at the end of 2022, but old survey and land records still use it. Over a mile the difference is about 3 mm; over 100 km it is about 200 mm, which matters in surveying and geodesy and nowhere else.
Regional usage & source
Metric units (mm, cm, m, km) are used in most of the world. Imperial units (in, ft, yd, mi) are standard in the US and still common in the UK for road distances and human height.
Reference: Conversion factors are defined by the International System of Units (SI) as maintained by the BIPM (bipm.org) and NIST (nist.gov). 1 inch = exactly 0.0254 meters (international yard and pound agreement, 1959).
How these numbers are produced and rounded: methodology.