At One Place

Ounces to carats

1 ounce in carats
1 oz = 141.7476 ct
ct = oz × 141.7476156

To convert ounces to carats, multiply by 141.7476156. The table below gives the values people look up most often, and the converter works for any number.

Ounces to carats table

Common ounce values converted to carats.
Ounces Carats
1 oz 141.7476
2 oz 283.4952
3 oz 425.2428
4 oz 566.9905
5 oz 708.7381
10 oz 1,417.4762
15 oz 2,126.2142
20 oz 2,834.9523
25 oz 3,543.6904
30 oz 4,252.4285
40 oz 5,669.9046
50 oz 7,087.3808
75 oz 10,631.071
100 oz 14,174.762
250 oz 35,436.904
500 oz 70,873.808
1,000 oz 141,747.62

How the conversion works

The relationship is ct = oz × 141.7476156. 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

How many carats are in one ounce?
One ounce equals 141.7476 carats. ct = oz × 141.7476156.
How do you convert ounces to carats?
Use ct = oz × 141.7476156. So 10 oz is 1,417.4762 ct.
How many ounces are in one carat?
One carat equals 0.0070548 ounces, which is the reverse of the conversion above.

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