This converter turns US tons into carats instantly, using the exact factor 1 US ton = 4535923.7 carats. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
The short ton: 2,000 pounds, the standard ton in the United States. Exactly 200 milligrams — the mass unit for gemstones and pearls.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
US tons- The amount you are converting, measured in US tons
4535923.7- The exact number of carats in one US ton
carats- The converted result
How it works, step by step
- Enter the number of US tons you want to convert.
- The value is multiplied by 4535923.7, the exact conversion factor.
- The result is displayed in carats, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 US tons
Multiply 5 by 4535923.7. That gives 22,679,618.5 carats. A quick sanity check: one US ton is larger than one carat, so the number should get bigger — and it does.
Converting 72 US tons
72 × 4535923.7 = 326,586,506.4 carats. Working backwards, 326,586,506.4 ÷ 4535923.7 returns 72 US tons, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many carats are in one US ton?
Exactly 4535923.7. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert US tons to carats?
Carats = US tons × 4535923.7. To reverse it, divide instead: US tons = carats ÷ 4535923.7, which is the same as multiplying by 2.204622622e-07.
Is the US ton bigger than the carat?
Yes. One US ton equals 4.53592e+06 carats, so it is the larger unit.
Why does my answer differ slightly from other us-tons to carats converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a US ton?
The short ton: 2,000 pounds, the standard ton in the United States.
What is a carat?
Exactly 200 milligrams — the mass unit for gemstones and pearls.
Us Tons to carats reference table
| Us Tons | Carats |
|---|---|
| 0.5 ton | 2,267,961.85 ct |
| 1 ton | 4,535,923.7 ct |
| 2 ton | 9,071,847.4 ct |
| 3 ton | 13,607,771.1 ct |
| 5 ton | 22,679,618.5 ct |
| 10 ton | 45,359,237 ct |
| 15 ton | 68,038,855.5 ct |
| 20 ton | 90,718,474 ct |
| 25 ton | 113,398,092.5 ct |
| 50 ton | 226,796,185 ct |
| 75 ton | 340,194,277.5 ct |
| 100 ton | 453,592,370 ct |
| 250 ton | 1,133,980,925 ct |
| 500 ton | 2,267,961,850 ct |
| 1000 ton | 4,535,923,700 ct |
Exact factor: 1 US ton = 4535923.7 carats. Values rounded for display.