You must choose the car model from the dropdown to calculate a car’s duty. The latest way to calculate the duty is based on the tariff given by the customs department, where recently they chose to give FOB price instead of CIF price. Choose the currency, whether GBP, JPY, or others, if the model you selected uses CIF price. we would not need to have the conversation based on the latest exchange rate. However, if it’s in the origin currency, the conversion will be calculated based on the customs exchange rate.