Instant · Precise · Universal
32 units available
6 categories total
To convert inches to cm: multiply by 2.54. To convert cm to inches: divide by 2.54.
1 in = 25.4 mm = 2.54 cm = 1/12 ft = 1/36 yd.
For example, 1 Inch (in) = 8.231520e-22 Kiloparsec (kpc).
| Inch (in) | Kiloparsec (kpc) |
|---|---|
| 0.1 | 8.231520e-23 |
| 0.5 | 4.115760e-22 |
| 1 | 8.231520e-22 |
| 2 | 1.646304e-21 |
| 5 | 4.115760e-21 |
| 10 | 8.231520e-21 |
| 25 | 2.057880e-20 |
| 50 | 4.115760e-20 |
| 100 | 8.231520e-20 |
| 500 | 4.115760e-19 |
| 1000 | 8.231520e-19 |
The inch is a unit of length in the imperial and US customary systems, defined as exactly 25.4 millimeters.
1 in = 25.4 mm = 2.54 cm = 1/12 ft = 1/36 yd.
To convert inches to cm: multiply by 2.54. To convert cm to inches: divide by 2.54.
Screen sizes (TVs, monitors), drill bit sizes, pipe diameters, screw dimensions, and rainfall measurement in the US.
King Edward II of England defined the inch as 'three grains of barley, dry and round, placed end to end' in 1324.
Forgetting that fractions of an inch use powers of 2 (1/2, 1/4, 1/8, 1/16), not decimal subdivisions like metric.
Your thumb from tip to first knuckle is roughly 1 inch — a handy (literal) reference.
The kiloparsec is equal to 1,000 parsecs, approximately 3,262 light-years, used for measuring distances within galaxies.
1 kpc = 1,000 pc = 3,261.6 ly = 3.0857 × 10¹⁹ m.
To convert kpc to light-years: multiply by 3,261.6. To convert kpc to pc: multiply by 1,000.
Mapping spiral arm structures, locating star clusters, and describing galactic halo dimensions.
The Milky Way disk is about 30 kpc in diameter. The Sun orbits the galactic center at a distance of ~8.2 kpc.
Forgetting the factor of 1,000: 1 kpc = 1,000 pc, not 100 pc.
Think of kpc as the 'kilometer' of galaxy mapping — most features within a galaxy are measured in kpc.



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