Convert ounces to carats

1 oz = 141.747615625 ct — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.

141.747 615 625ct
✓ Exact 1 oz = 141.747 615 625 ct
As a fraction: 45359237/320000
More converter tools

Readable results

Ranges, ± tolerances, feet/inches and clock durations work in the value field.

Unit picker

Export this result

1 oz = 141.747615625 ct
Show this value in all 34 weight & mass units
  • Megagrams Mg 0.000 028 349 523 125
  • Kilograms kg 0.028 349 523 125
  • Hectograms hg 0.283 495 231 25
  • Decagrams dag 2.834 952 312 5
  • Grams g 28.349 523 125
  • Decigrams dg 283.495 231 25
  • Centigrams cg 2834.952 312 5
  • Milligrams mg 28 349.523 125
  • Micrograms µg 28 349 523.125
  • Nanograms ng 28 349 523 125
  • Picograms pg 28 349 523 125 000
  • Tonnes t 0.000 028 349 523 125
  • Kilotonnes kt 2.8349523125e-8
  • Megatonnes Mt 2.8349523125e-11
  • Quintals q 0.000 283 495 231 25
  • Carats ct 141.747 615 625
  • Pounds lb 0.0625
  • Ounces oz 1
  • Drams dr 16
  • Grains gr 437.5
  • Stones st 0.004 464 285 714 29
  • Hundredweight (US)s cwt (US) 0.000 625
  • Hundredweight (UK)s cwt (UK) 0.000 558 035 714 286
  • Short ton (US)s tn 0.000 031 25
  • Long ton (UK)s LT 0.000 027 901 785 714 3
  • Troy ounces ozt 0.911 458 333 333
  • Troy pounds lbt 0.075 954 861 111 1
  • Pennyweights dwt 18.229 166 666 7
  • Slugs slug 0.001 942 559 385 72
  • Atomic mass units u 1.70724818558e+25
  • Electron masss mₑ 3.11212306071e+28
  • Planck masss mₚ 1 302 567.554 31
  • Earth masss M🜨 4.74691455829e-27
  • Solar masss M☉ 1.42537272113e-32

Every row is Ounce (oz) converted through the kilogram, in exact rational arithmetic.

How to convert ounces to carats

Multiply the number of ounces by 141.747615625 to get carats.

The exact factor is 141.747615625 — as a fraction, 45359237/320000.

Carat: The metric carat: exactly 200 mg.

Ounce to Carat conversion table

Ounces (oz) Carats (ct)
1 oz 141.747 62
2 oz 283.495 23
3 oz 425.242 85
5 oz 708.738 08
10 oz 1417.4762
20 oz 2834.9523
25 oz 3543.6904
50 oz 7087.3808
100 oz 14 174.762
250 oz 35 436.904
500 oz 70 873.808
1000 oz 141 747.62

Carat to Ounce conversion table

Carats (ct) Ounces (oz)
1 ct 0.007 054 792 4
2 ct 0.014 109 585
3 ct 0.021 164 377
5 ct 0.035 273 962
10 ct 0.070 547 924
20 ct 0.141 095 85
25 ct 0.176 369 81
50 ct 0.352 739 62
100 ct 0.705 479 24
250 ct 1.763 698 1
500 ct 3.527 396 2
1000 ct 7.054 792 4

Frequently asked

How many carats are in a ounce?

One ounce equals 141.7476156 carats (oz → ct). That figure is exact, not rounded.

How do you convert ounces to carats?

Multiply the number of ounces by 141.747615625 to get carats.

What is 1 ct in ounces?

One carat is 0.00705479239 ounces.

What is 10 oz in ct?

10 oz = 1417.4762 ct.

What exactly is a carat?

The metric carat: exactly 200 mg.

Related conversions

Settings

Theme

System follows your operating system and changes with it.

Text size
High contrast

Maximises text and border contrast and removes the grid background.

Graph-paper background

Round to
Notation
Thousands separators
Decimal mark
Nearest fraction

Shows the result as the nearest tape-measure fraction, with the error it costs.


Accessibility & interaction
Reduce motion Stops interface animations even when the operating system does not.
Underline links Keeps links visually distinct without relying on colour.
Larger touch targets Makes buttons and form controls easier to tap.
Shorter reading lines Limits article width for easier scanning.
Monochrome display Removes colour as an information cue.
Always-visible focus Makes the keyboard focus ring persistent and stronger.
Verbose screen-reader results Announces the complete conversion equation.
Sticky action bars Keeps converter and calculator actions within reach.
Select values on focus Replaces a value immediately when you start typing.
Left-handed mobile layout Moves key mobile actions toward the left thumb.

Your data

Settings, recent conversions and favourites live in this browser only. Nothing is sent anywhere.

Offline library