1. Find the strength and liquid volume
Read the ABV percentage and bottle or can size from the packaging. For a multipack, multiply the size per item by the number of items. For example, four 500ml cans contain 2 litres altogether.
2. Work out the alcohol units
Alcohol units = ABV × volume in millilitres ÷ 1,000. Four 500ml cans at 5% contain 10 alcohol units: 5 × 2,000 ÷ 1,000.
3. Multiply by the current MUP rate
At 65p per unit, 10 units gives £6.50. Apply the rounding rule for the correct nation. Wales uses nearest-penny rounding, with half a penny rounded up; Scotland rounds up to the next whole penny.
A common rounding difference
A 750ml bottle of 12.5% wine contains 9.375 units. At £0.65 per unit the unrounded result is £6.09375. The result is £6.09 for Welsh MUP and £6.10 for Scottish MUP.
MUP is different from RRP
MUP is a legal alcohol-pricing floor. Manufacturer recommended retail price is commercial pricing information. The ABV calculation cannot tell you a manufacturer’s RRP or your profit margin.
When a simple calculation is not enough
Mixed-strength offers, linked discounts and Scottish multipack rules need additional assessment. England and Northern Ireland are not calculated by our Wales/Scotland MUP tool; do not treat a missing result as permission to charge any price.