21 newtons (21 N)
21 newtons equals 4.7209878 pounds-force, 2.141404 kilograms-force, 0.021 kilonewtons and 2,100,000 dynes.
21 newtons = 4.720987805 pounds-force
How big is 21 newtons?
21 newtons is about the weight of 2.1 liters of water, or about the weight of 21 apples, or about 29% of the weight of a bowling ball.
21 newtons in all force units
| Unit | Value | Scientific notation |
|---|---|---|
| Pounds-force (lbf) | 4.720987805 | 4.72099 × 100 |
| Kilograms-force (kgf) | 2.141404047 | 2.1414 × 100 |
| Kilonewtons (kN) | 0.021 | 2.1 × 10-2 |
| Dynes (dyn) | 2,100,000 | 2.1 × 106 |
| Kips (kip) | 0.004720987805 | 4.72099 × 10-3 |
| Grams-force (gf) | 2,141.404047 | 2.1414 × 103 |
| Tonnes-force (tf) | 0.002141404047 | 2.1414 × 10-3 |
| Meganewtons (MN) | 0.000021 | 2.1 × 10-5 |
| Millinewtons (mN) | 21,000 | 2.1 × 104 |
| Ounces-force (ozf) | 75.53580488 | 7.55358 × 101 |
| Poundals (pdl) | 151.8932909 | 1.51893 × 102 |
| Short tons-force (tonf (US)) | 0.002360493903 | 2.36049 × 10-3 |
| Long tons-force (tonf (UK)) | 0.002107583842 | 2.10758 × 10-3 |
| Micronewtons (µN) | 21,000,000 | 2.1 × 107 |
| Planck forces (FP) | 1.73515 × 10-43 | 1.73515 × 10-43 |
| Atomic unit of forces (Eh/a₀) | 254,893,855.9 | 2.54894 × 108 |
| Sthenes (sn) | 0.021 | 2.1 × 10-2 |
Other amounts of newtons
About the newton
The newton is the SI unit of force, named after Isaac Newton. Read more about newtons.