At One Place

21 g to st

21 grams in stone
21 g = 0.0033069 st
st = g × 0.000157473044

21 grams is 0.0033069 stone. To get there, multiply by 0.000157473044.

Values either side

Grams near 21, converted to stone.
Grams Stone
17 g 0.002677
18 g 0.0028345
19 g 0.002992
20 g 0.0031495
21 g ← 0.0033069
22 g 0.0034644
23 g 0.0036219
24 g 0.0037794
25 g 0.0039368

How the conversion works

The relationship is st = g × 0.000157473044. Both units measure mass, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

Common questions

What is 21 g in stone?
21 g is 0.0033069 st.
How do you convert grams to stone?
Multiply by 0.000157473044.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked