Percentage Calculator
Calculate a percentage of a value, percentage change, or a percentage increase without spreadsheet formulas.
Open toolAdd VAT to a net amount or extract the VAT already included in a gross amount using an adjustable rate.
Required fields are marked.
Complete the fields to generate an explainable result.
Saving is optional. Downloading a PDF does not create an account or a permanent saved result.
Use “Add VAT” when the entered amount excludes tax. Use “Extract VAT” when the amount is already VAT-inclusive.
This calculator performs arithmetic only and does not determine whether a product, service or organisation is taxable.
Read the instructions and labels before entering information. Use consistent units and a single time period. Where the tool compares scenarios, distinguish figures you have measured from assumptions you want to test.
Review the explanation alongside the result, including what is included or excluded. A calculated example describes the values supplied; it is not a quotation, an offer or a guarantee of what will happen. Avoid entering personal or confidential information into inputs intended for general calculations.