Convert ångströms to kilometers

1 Å = 0.0000000000001 km — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.

1e-13km
✓ Exact 1 Å = 1e-13 km
Exact decimal: 0.0000000000001
As a fraction: 1/10000000000000
More converter tools

Readable results

Ranges, ± tolerances, feet/inches and clock durations work in the value field.

Unit picker

Export this result

1 Å = 0.0000000000001 km
Show this value in all 50 length units
  • Gigameters Gm 1e-19
  • Megameters Mm 1e-16
  • Kilometers km 1e-13
  • Hectometers hm 1e-12
  • Decameters dam 1e-11
  • Meters m 1e-10
  • Decimeters dm 1e-9
  • Centimeters cm 1e-8
  • Millimeters mm 0.000 000 1
  • Micrometers µm 0.0001
  • Nanometers nm 0.1
  • Picometers pm 100
  • Femtometers fm 100 000
  • Inches in 3.93700787402e-9
  • Feet ft 3.28083989501e-10
  • Yards yd 1.09361329834e-10
  • Miles mi 6.21371192237e-14
  • Nautical miles nmi 5.39956803456e-14
  • Thous thou 0.000 003 937 007 874 02
  • Hands hh 9.84251968504e-10
  • Links li 4.9709695379e-10
  • Spans span 4.37445319335e-10
  • Cubits cubit 2.18722659668e-10
  • Ells ell 8.7489063867e-11
  • Fathoms ftm 5.46806649169e-11
  • Rods rd 1.98838781516e-11
  • Chains ch 4.9709695379e-12
  • Furlongs fur 4.9709695379e-13
  • Leagues lea 2.07123730746e-14
  • Barleycorns barleycorn 1.1811023622e-8
  • US survey feet ft (US) 3.28083333333e-10
  • US survey miles mi (US) 6.21369949495e-14
  • Ångströms Å 1
  • Microns µ 0.0001
  • Bohr radiuss a₀ 1.889 726 125 91
  • Planck lengths ℓₚ 6.18714249917e+24
  • Astronomical units au 6.68458712227e-22
  • Light-years ly 1.05700083402e-26
  • Light-seconds ls 3.33564095198e-19
  • Light-minutes lmin 5.55940158664e-21
  • Parsecs pc 3.24077928944e-27
  • Kiloparsecs kpc 3.24077928944e-30
  • Megaparsecs Mpc 3.24077928944e-33
  • Solar radiuss R☉ 1.43740117867e-19
  • Earth radiuss R🜨 1.56961230576e-17
  • Point (DTP)s pt 0.000 000 283 464 566 929
  • Picas pc 2.36220472441e-8
  • Scandinavian miles mil 1e-14
  • Versts вер 9.37382827147e-14
  • Lis 里 2e-13

Every row is Ångström (Å) converted through the meter, in exact rational arithmetic.

How to convert ångströms to kilometers

Multiply the number of ångströms by 0.0000000000001 to get kilometers.

The exact factor is 0.0000000000001 — as a fraction, 1/10000000000000.

Ångström: Convenient for atomic radii and X-ray wavelengths.

Ångström to Kilometer conversion table

Ångströms (Å) Kilometers (km)
1 Å 1e-13
2 Å 2e-13
3 Å 3e-13
5 Å 5e-13
10 Å 1e-12
20 Å 2e-12
25 Å 2.5e-12
50 Å 5e-12
100 Å 1e-11
250 Å 2.5e-11
500 Å 5e-11
1000 Å 1e-10

Kilometer to Ångström conversion table

Kilometers (km) Ångströms (Å)
1 km 10 000 000 000 000
2 km 20 000 000 000 000
3 km 30 000 000 000 000
5 km 50 000 000 000 000
10 km 100 000 000 000 000
20 km 200 000 000 000 000
25 km 250 000 000 000 000
50 km 500 000 000 000 000
100 km 1 000 000 000 000 000
250 km 2 500 000 000 000 000
500 km 5 000 000 000 000 000
1000 km 1e+16

Frequently asked

How many kilometers are in a ångström?

One ångström equals 1e-13 kilometers (Å → km). That figure is exact, not rounded.

How do you convert ångströms to kilometers?

Multiply the number of ångströms by 0.0000000000001 to get kilometers.

What is 1 km in ångströms?

One kilometer is 10000000000000 ångströms.

What is 10 Å in km?

10 Å = 1e-12 km.

What exactly is a ångström?

Convenient for atomic radii and X-ray wavelengths.

Related conversions

Settings

Theme

System follows your operating system and changes with it.

Text size
High contrast

Maximises text and border contrast and removes the grid background.

Graph-paper background

Round to
Notation
Thousands separators
Decimal mark
Nearest fraction

Shows the result as the nearest tape-measure fraction, with the error it costs.


Accessibility & interaction
Reduce motion Stops interface animations even when the operating system does not.
Underline links Keeps links visually distinct without relying on colour.
Larger touch targets Makes buttons and form controls easier to tap.
Shorter reading lines Limits article width for easier scanning.
Monochrome display Removes colour as an information cue.
Always-visible focus Makes the keyboard focus ring persistent and stronger.
Verbose screen-reader results Announces the complete conversion equation.
Sticky action bars Keeps converter and calculator actions within reach.
Select values on focus Replaces a value immediately when you start typing.
Left-handed mobile layout Moves key mobile actions toward the left thumb.

Your data

Settings, recent conversions and favourites live in this browser only. Nothing is sent anywhere.

Offline library