VAT Calculator

Add or remove VAT from any amount instantly, in any currency.

Currency

Amount

VAT rate

Mode

Formula: VAT = Net × (rate ÷ 100) • Gross = Net + VAT

Net = amount before VAT
Gross = amount including VAT

How to use the VAT Calculator

Enter the amount. Type the figure you want to add or remove VAT from.
Set the rate. Enter your VAT/GST percentage.
Choose the mode. Add VAT to a net amount, or remove it from a gross amount.

Why use our VAT Calculator

Add or remove VAT. Switch modes to add VAT to a net figure or back it out of a gross figure.

Any rate, any currency. Works for 20%, 7.5%, or any custom VAT/GST rate in six currencies.

Instant & private. Calculates as you type, entirely in your browser.

Free to use — premium coming soon

FREE

✓ Add & remove VAT
✓ Any rate
✓ Six currencies

PREMIUM

★ Remove ads
★ Save rates & presets
★ Bulk VAT calculations

About the VAT Calculator

The VAT Calculator works out Value Added Tax in two directions: it adds VAT to a net (pre-tax) figure to give you the gross price a customer pays, or it strips VAT back out of a gross figure to reveal the net amount and the tax portion separately. You type in an amount, pick a rate, and choose whether the figure you entered already includes tax. That second choice matters more than people expect, because adding 20% and removing 20% are not the reverse of each other in plain arithmetic, and getting the direction wrong is the single most common VAT mistake.

Reach for this tool whenever a number and a tax rate collide. Freelancers use it to quote a client a clean gross price, retailers use it to back out the tax already baked into a shelf price, and bookkeepers use it to split a receipt total into net and VAT for their records. Because you can type any rate, it handles a 20% UK standard charge, a 5% reduced rate, a 0% zero-rated supply, or any of the EU rates from Luxembourg's 17% up to Hungary's 27%. The multi-currency selector simply changes the symbol shown; the maths is identical whatever currency you work in.

Under the hood the calculator uses the standard VAT formulas rather than a percentage shortcut. To add tax it multiplies the net amount by one plus the rate, so 500 at 20% becomes 500 x 1.20 = 600. To remove tax it divides the gross amount by that same factor, so 600 at 20% returns 600 / 1.20 = 500, leaving 100 of VAT. This is why you cannot simply subtract 20% from a gross price: that would take 20% of the larger, tax-inclusive figure and overshoot. The tool always shows you the net, the VAT amount, and the gross together so every component reconciles.

Everything runs in your browser. The amounts and rates you enter are never uploaded to a server, stored, or shared, which matters when you are checking real invoice or pricing figures. Results are rounded for display to two decimal places, the convention used on most invoices, so a long line of items may differ by a penny from a total that VAT was applied to in one lump. For filing a return or issuing a formal VAT invoice, treat this as a fast cross-check against your accounting software and confirm the current rate and rounding rules for your jurisdiction with the relevant tax authority.

Frequently asked questions

How do I add VAT to a price?

Enter the net amount, set the VAT rate, and choose the option that adds tax. The calculator multiplies the net figure by one plus the rate, so 500 at 20% gives 600 gross with 100 of VAT.

How do I remove VAT from a gross (VAT-inclusive) price?

Enter the gross amount and select remove or reverse VAT. The tool divides the figure by one plus the rate, so 600 at 20% returns a net of 500 and a VAT portion of 100. Do not simply subtract 20%, as that takes the percentage from the larger tax-inclusive total and gives the wrong answer.

What is the current standard UK VAT rate?

The UK standard rate is 20% and has been unchanged since January 2011. A reduced rate of 5% applies to items such as domestic energy, and some goods like most food and children's clothing are zero-rated at 0%. You can type whichever rate fits your situation.

What VAT rates apply in the EU?

Standard EU rates range from 17% in Luxembourg to 27% in Hungary, with most countries between 19% and 25%. Because the calculator accepts any rate, you can use it for any country; just enter that country's current standard or reduced rate.

Can I rely on these figures for my VAT return?

Use the calculator as a quick check rather than the final word. Results are rounded to two decimals, and totals built up line by line can differ slightly from VAT applied to a single total, so confirm the exact figures and rounding rules with your accounting software or tax authority before filing.

From our blog

How to Calculate What Any Appliance Actually Costs to Run

By the Super Simple Digital Tools Team · Updated June 2026

Your electricity bill is really just one number measured over and over: the kilowatt-hour. A kilowatt-hour is what you use when a 1,000-watt device runs for one hour. Everything on your bill, the fridge, the dryer, the always-on router, gets boiled down to how many of those kWh it consumed, multiplied by a price. Once you understand that single unit, the cost of any appliance stops being a mystery and becomes a quick multiplication you can do in seconds.

Start by finding three numbers. First, wattage, which is usually printed on the appliance's nameplate, sticker, or in the manual; if you only see amps and volts, multiply them together (a 10-amp device on a 120-volt circuit is 1,200 watts). Second, the hours it runs in a typical day. Third, your rate per kWh, copied from your utility bill. With those three values the calculator handles the conversions, but it helps to know what it's doing under the hood.

The formula has two steps. Convert watts to kilowatts by dividing by 1,000, then multiply by hours to get energy used: a 1,500-watt heater for 8 hours is 1.5 kW x 8 = 12 kWh. Then multiply energy by your rate to get cost: 12 kWh x $0.17 = $2.04 per day. From there, scaling up is easy: multiply by 30 for a monthly estimate (about $61) or by 365 for the yearly figure (about $745). The same two steps work for a phone charger or a hot tub.

The biggest source of error isn't the math, it's the wattage assumption. Listed wattage is the maximum a device can draw, but many appliances don't run flat-out the whole time. A refrigerator's compressor cycles on and off, an air conditioner modulates, and a washing machine only heats water during part of its cycle. For these, your real-world cost is lower than a constant-wattage estimate, so treat such results as a sensible upper bound rather than an exact number.

To turn estimates into action, focus on the two levers you control: wattage and time. A device that's both high-wattage and runs for many hours, such as electric heating, water heating, or an EV charger, dominates your bill, so even small efficiency gains there pay off. Low-wattage gadgets matter mostly in aggregate through standby power, which can quietly add up across a whole house. Pricing each one with the calculator shows you exactly which battles are worth fighting.

Read your rate straight off the bill and include per-kWh delivery and supply charges, not just the advertised rate, for a truer cost.
For cycling appliances like fridges and ACs, treat the calculator's number as a maximum and expect your real cost to be somewhat lower.
Borrow or buy a plug-in energy monitor (around $25 to $50) to measure a device's actual watts instead of guessing from the label.
If you're on a time-of-use plan, run high-wattage devices during off-peak hours and re-run the calculation with the off-peak rate to see the savings.

Read the full guide →

Tool by the Super Simple Digital Tools Team. Reviewed by our editorial team. Free to use, no signup required.