---
title: "Ounces to Carats — oz to ct converter"
description: "1 ounce = 141.7476 carats. Convert ounces to carats with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/oz-to-carats/
site: "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

- [Carats to Ounces](https://atoneplace.net/convert/carats-to-oz/)
- [Ounces to Kilograms](https://atoneplace.net/convert/oz-to-kg/)
- [Ounces to Grams](https://atoneplace.net/convert/oz-to-grams/)
- [Ounces to Milligrams](https://atoneplace.net/convert/oz-to-mg/)
- [Ounces to Tonnes](https://atoneplace.net/convert/oz-to-tonnes/)
- [Ounces to Pounds](https://atoneplace.net/convert/oz-to-lbs/)
- [Ounces to Stone](https://atoneplace.net/convert/oz-to-stone/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)