Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
Gross (incl. VAT)
$1,440.00
Net (excl. VAT)
$1,200.00
VAT amount
$240.00
Rate applied
20.0%
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One click, a permanent link with your numbers baked in.
How to use this
- 1Enter amount ($).
- 2Enter vat rate (%).
- 3Enter direction.
- 4Read your gross (incl. vat) on the right — it updates as you type.
- 5Hit Share to keep the scenario or send it to someone.
About this calculator
Works in both directions: add VAT to a net price, or strip it out of a gross price to find the net. Handy for UK and EU invoicing where quoted prices may or may not include tax.
Worked example
Using the values the calculator loads with:
Inputs
- Amount: 1200 $
- VAT rate: 20 %
- Direction: Add VAT to a net amount
Results
- Gross (incl. VAT): $1,440.00
- Net (excl. VAT): $1,200.00
- VAT amount: $240.00
- Rate applied: 20.0%
What each field means
Inputs
- Amount ($)
- The amount used in the calculation, measured in $. Starts at 1200 $ so you have a working example on load.
- VAT rate (%)
- The vat rate used in the calculation, measured in %. Starts at 20 % so you have a working example on load. Accepted range: 0–40 %.
- Direction
- Pick the option that matches your situation — the maths changes per option. Choices: Add VAT to a net amount, Remove VAT from a gross amount.
Results
- Gross (incl. VAT)
- Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Net (excl. VAT)
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- VAT amount
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Rate applied
- Returned as a percentage. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How does the vat calculator work?
Works in both directions: add VAT to a net price, or strip it out of a gross price to find the net. Handy for UK and EU invoicing where quoted prices may or may not include tax. The underlying maths is: Gross = Net × (1 + Rate). Net = Gross ÷ (1 + Rate).
What do I need to enter?
3 values: amount, vat rate, and direction. Each field starts with a sensible default, so you can change one number at a time and watch the result move.
What does the gross (incl. vat) result mean?
It is returned as a money amount in US dollars and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds.
Is this calculator free, and do I need an account?
Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser.
How accurate is the result?
It applies the standard formula exactly, so the arithmetic is precise. Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
Who is this tool for?
It's built for anyone comparing money scenarios before committing — budgeting a payment, sanity-checking a quote, or seeing what a change in rate or term actually costs.
Accuracy and limitations
- Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
- Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
- This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). VAT Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/vat
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/vat" target="_blank" rel="noopener">VAT Calculator — RevenueLab</a> (2026).</p>
Source: [VAT Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/vat) (2026).