Free calculators and unit converters for general and everyday use.
Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can calculate the GST (Goods & Service Tax) applicable on a amount given the taxation rate and then use it to find GST-inclusive/ GST-exclusive price for a product or service.
GST taxation rate is country specific. Some countries like Australia levy a single rate on all goods and services. Others like India have different tax rates for different kinds of goods and services. This GST calculator will work for all cases. Select "Exclude tax" option for reverse GST calculation.
GST = A * t / 100
GST = Tax amount
A = GST-excluded amount
t = GST rate in percent
GST-inclusive amount = GST-excluded amount + GST