EVERYDAY
Length
Distance, height, thickness and astronomical length.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Resulthm → kmConvert hectometre to kilometre
EVERYDAY · ENGINEERING · SCIENCE
Unit conversion. Made clear.
Start with a familiar unit, type a value, and get a dependable answer with sensible precision. Fractions and scientific notation are welcome.
520units ready to convert
HOW IT IS CALCULATED
Convert through metre
Enter a hectometre value to calculate kilometre with full internal precision before display rounding.
Display precisionAuto · 12 significant digits
Auto keeps up to 12 significant digits, trims unnecessary zeroes, and switches to scientific notation for extreme magnitudes.
QUICK REFERENCE
All units in this quantity
| Unit | Symbol | Converted value |
|---|---|---|
| quectometrefrom hm | qm | Interactive |
| rontometrefrom hm | rm | Interactive |
| yoctometrefrom hm | ym | Interactive |
| zeptometrefrom hm | zm | Interactive |
| attometrefrom hm | am | Interactive |
| femtometrefrom hm | fm | Interactive |
| picometrefrom hm | pm | Interactive |
| nanometrefrom hm | nm | Interactive |
| ångströmfrom hm | Å | Interactive |
| micrometrefrom hm | µm | Interactive |
| millimetrefrom hm | mm | Interactive |
| centimetrefrom hm | cm | Interactive |
| decimetrefrom hm | dm | Interactive |
| metrefrom hm | m | Interactive |
| decametrefrom hm | dam | Interactive |
| hectometrefrom hm | hm | Interactive |
| kilometrefrom hm | km | Interactive |
| megametrefrom hm | Mm | Interactive |
| gigametrefrom hm | Gm | Interactive |
| terametrefrom hm | Tm | Interactive |
| petametrefrom hm | Pm | Interactive |
| exametrefrom hm | Em | Interactive |
| zettametrefrom hm | Zm | Interactive |
| yottametrefrom hm | Ym | Interactive |
| ronnametrefrom hm | Rm | Interactive |
| quettametrefrom hm | Qm | Interactive |
| thou / milfrom hm | mil | Interactive |
| inchfrom hm | in | Interactive |
| footfrom hm | ft | Interactive |
| yardfrom hm | yd | Interactive |
| chainfrom hm | ch | Interactive |
| furlongfrom hm | fur | Interactive |
| international milefrom hm | mi | Interactive |
| nautical milefrom hm | nmi | Interactive |
| U.S. survey footfrom hm | ftUS | Interactive |
| typographic pointfrom hm | pt | Interactive |
| astronomical unitfrom hm | au | Interactive |
| light-secondfrom hm | ls | Interactive |
| light-yearfrom hm | ly | Interactive |
| parsecfrom hm | pc | Interactive |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.