Carats to Tonnes Converter
Convert carats (ct) to tonnes (t) instantly. Weight units matter at the wet market, where older stalls and Chinese medical halls still quote prices per kati or tael, and when following American recipes in ounces and pounds.
Result
- Tonnes
- 2.000000e-7 t
How to use the carats to tonnes converter
- Enter the carats (ct).
- The results update as you type, or press Calculate.
- Read the tonnes first, then the supporting figures below it.
Formula
Tonnes = carats × 2.000000e-07
Worked example
For example, with these inputs:
- Carats (ct): 1
the calculator returns:
- Tonnes: 2.000000e-7 t
Carats to Tonnes table
| Carats | Tonnes |
|---|---|
| 1 ct | 2.000000e-7 t |
| 2 ct | 4.000000e-7 t |
| 5 ct | 1.000000e-6 t |
| 10 ct | 2.000000e-6 t |
| 20 ct | 4.000000e-6 t |
| 25 ct | 5.000000e-6 t |
| 50 ct | 1.000000e-5 t |
| 100 ct | 2.000000e-5 t |
| 250 ct | 5.000000e-5 t |
| 500 ct | 0.0001 t |
| 1,000 ct | 0.0002 t |
About this conversion
Weight units matter at the wet market, where older stalls and Chinese medical halls still quote prices per kati or tael, and when following American recipes in ounces and pounds.
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
Frequently asked questions
How many tonnes are in one carat?
1 ct = 2.000000e-7 t.
How do I convert ct to t?
Tonnes = carats × 2.000000e-07.