Free business calculators

Quick answers for invoices and pricing. Everything runs in your browser.

• GST calculator (India)

  Add or remove GST at 3%, 5%, 18% or 40% and see the CGST/SGST or IGST split. Free, instant, nothing uploaded.

• VAT calculator

  Add or remove VAT at any rate, with presets for the UK and EU countries. Free, instant, nothing uploaded.

• US sales tax calculator

  Calculate sales tax from a price using a state base rate plus an optional local rate. Free, instant, nothing uploaded.

• Late payment fee calculator

  Calculate the interest or fee on an overdue invoice from the amount, rate and days late. Free, instant, nothing uploaded.

• Hourly rate to salary calculator

  Convert an hourly rate to weekly, monthly and annual pay, or the reverse. Free, instant, nothing uploaded.