GST Calculator

Here's a calculator to help you figure out the GST portion of any amount under both 12.5% and 15% GST.

To calculate GST, enter an amount into one of the fields and click Calculate. The other fields will automatically populate.

Old 12.5% New 15%
Exclusive

Please enter a valid number.

+ GST amount
Inclusive
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How it's calculated

Swedish rounding is used to calculate a value to the nearest 1 cent. For amounts ending in:

  • 001c, 002c, 003c and 004c, round down to the nearest 1 cent value
  • 005c, 006c, 007c, 008c and 009c, round up to the nearest 1 cent value.

For example, an amount of:

  • $15.144 would be rounded down to $15.14
  • $15.145 would be rounded up to $15.15