Tonnes to Carats Converter

1 tonne (t) equals 5,000,000 carats (ct).

Quick answer

  • 1 tonne = 5,000,000 carats
  • 1 carat = 2 × 10-7 tonnes
  • Formula: ct = t × 5,000,000

1 tonne = 5,000,000 carats

How to convert tonnes to carats

ct = t × 5,000,000

To convert tonnes to carats, multiply the number of tonnes by 5,000,000.

Example: 18 t to ct

  1. Start with the value in tonnes: 18 t.
  2. Multiply by 5,000,000: 18 × 5,000,000 = 90,000,000.
  3. Result: 18 tonnes = 90,000,000 carats.

Going the other way, 1 carat = 2 × 10-7 tonnes, so to convert carats back to tonnes you divide by the same number. See carats to tonnes.

Tonnes to carats conversion table

Tonnes (t)Carats (ct)
0.25 t 1,250,000 ct
0.5 t 2,500,000 ct
0.75 t 3,750,000 ct
1 t 5,000,000 ct
1.5 t 7,500,000 ct
2 t 10,000,000 ct
2.5 t 12,500,000 ct
3 t 15,000,000 ct
4 t 20,000,000 ct
5 t 25,000,000 ct
6 t 30,000,000 ct
7 t 35,000,000 ct
8 t 40,000,000 ct
9 t 45,000,000 ct
10 t 50,000,000 ct
11 t 55,000,000 ct
12 t 60,000,000 ct
13 t 65,000,000 ct
14 t 70,000,000 ct
15 t 75,000,000 ct
16 t 80,000,000 ct
17 t 85,000,000 ct
18 t 90,000,000 ct
19 t 95,000,000 ct
20 t 100,000,000 ct
21 t 105,000,000 ct
22 t 110,000,000 ct
23 t 115,000,000 ct
24 t 120,000,000 ct
25 t 125,000,000 ct
26 t 130,000,000 ct
27 t 135,000,000 ct
28 t 140,000,000 ct
29 t 145,000,000 ct
30 t 150,000,000 ct
31 t 155,000,000 ct
32 t 160,000,000 ct
33 t 165,000,000 ct
34 t 170,000,000 ct
35 t 175,000,000 ct

More t to ct values

What is a tonne?

The tonne, or metric ton, is a unit of mass equal to 1,000 kilograms, about 2,204.6 pounds.

More about tonnes →

What is a carat?

The carat is the unit of mass for gemstones and pearls, equal to exactly 200 milligrams.

More about carats →

Convert tonnes to other units

Convert other units to carats

Frequently asked questions

How many carats are in a tonne?

One tonne is 5,000,000 carats.

How many tonnes are in a carat?

One carat is 2e-7 tonnes.

What is the formula to convert tonnes to carats?

ct = t × 5,000,000.