UK Proof to ABV Per Mille for Alcohol Strength

Snapshot

1 UK Proof equals 5.715 ABV Per Mille. Conversion Encyclopedia uses the same fixed conversion basis across the calculator, common values, and reverse page for this page.

Reference basis: This result uses fixed ABV and proof definitions for the selected alcohol-strength pair.
Example: For 0.25 UK Proof, the result equals 1.42875 ABV Per Mille.
Use the reverse page if you need the opposite direction with the same basis.

Use the interactive calculator below for custom values and the common-value table for quick checks.

Converter Calculator

5.715 ABV Per Mille (permille)

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Explanation

Formula: ABV Per Mille = UK Proof × 5.715. Why: proof scales are normalized through ABV percent using fixed legal definitions, including US proof = 2 times ABV and 100 UK proof = 57.15% ABV.

UK Proof (proof (UK)): a historical proof scale where 100 proof equals 57.15% ABV.

ABV Per Mille (permille): an alcohol-strength scale expressed in parts per thousand by volume.

This route is useful when translating between ABV and proof systems for beverage labeling, spirits references, and dilution planning.

This conversion is purely multiplicative because both strength scales reduce through ABV percent using fixed proof and fractional definitions with no offset.

Method & Strength Basis

Method basis: fixed alcohol-strength definitions normalized through ABV percent, including the exact US and UK proof relationships used on this page.
Applied factor: 1 UK Proof = 5.715 ABV Per Mille.
Consistency rule: calculator output and common-value rows use the same ABV-based strength constants in both directions.

Common Conversion Values

UK Proof (proof (UK))	ABV Per Mille (permille)
0.25	1.42875
0.5	2.8575
1	5.715
5	28.575
12	68.58
20	114.3
40	228.6
57.15	326.61225
80	457.2
100	571.5

Frequently Asked Questions

How many permille are in 1 proof (UK)?

1 proof (UK) equals 5.715 permille on this page.

Why does this route go through ABV percent?

ABV percent is the common reference layer for this family, so proof, fraction, and per-mille strength values stay consistent and reversible.

How do I reverse UK Proof to ABV Per Mille?

Use the switch button or open the ABV Per Mille to UK Proof page to apply the same alcohol-strength relationship in reverse.

Can I use decimal inputs?

Yes. Decimal strength values are supported for beverage labeling, spirits references, lab work, and batching calculations.