Long ton to Carat Converter (and vice versa)
Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026
This converter allows you to convert long tons [tn.l.] to carats [ct] or carats [ct] to long tons [tn.l.]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.
Convert long tons to carats
There are two simple ways to convert long tons [tn.l.] to carats [ct]. In the first calculation method, the value in long tons [tn.l.] is divided by the rounded conversion factor of 1.968 * 10-7. The second method multiplies the value in long tons [tn.l.] by 5,080,234.544.
- Carats [ct] ≈ long tons [tn.l.] ÷ (1.968 * 10-7)
- Carats [ct] = long tons [tn.l.] * 5,080,234.544
However, the calculation method with rounded conversion values is only suitable for rough conversions from long tons [tn.l.] to carats [ct], as rounding errors may occur in the calculation results. The following formula shows another variant that can be used to calculate results as accurately as possible.
- Carats [ct] = long tons [tn.l.] * 971.68 * 1,045.66 ÷ 109
Convert carats to long tons
Converting carats [ct] to long tons [tn.l.] is easy and can be done in two ways. The first method involves multiplication, in which the value in carats [ct] is multiplied by the rounded conversion factor of 1.968 * 10-7. The second variant is a division. Here, the value in carats [ct] is divided by 5,080,234.544.
- Long tons [tn.l.] ≈ carats [ct] * 1.968 * 10-7
- Long tons [tn.l.] = carats [ct] ÷ 5,080,234.544
However, the version with rounded conversion values can produce somewhat inaccurate calculation results, which is why it is only suitable for rough conversions from carats [ct] to long tons [tn.l.]. The formula below shows an alternative method that can be used to calculate results as accurately as possible.
- Long tons [tn.l.] = carats [ct] ÷ 971.68 ÷ 1,045.66 * 109
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