BCAA Ratio Calculator — Branched‑Chain Amino Acid Ratio Tool

BCAA Ratio Calculator

Analyse the ratio of Leucine, Isoleucine, and Valine in your BCAA supplement. Find out if your formula matches the optimal 2:1:1 profile or any other common ratio.

Step 1: BCAA Content (mg)

Understanding BCAA ratios

The classic 2:1:1 ratio (Leu:Ile:Val) is often considered optimal for muscle protein synthesis. Leucine is the key trigger for muscle growth.

Step 2: Ratio Analysis

4000 mg

About scaling

Use the slider to see how your current ratio would look at a different total BCAA amount. The relative proportions stay the same.

BCAA Ratio Results

Summary
Ratio Comparison
Breakdown

Your BCAA Ratio

2.0 : 1.0 : 1.0
Total: 4000 mg
Leucine
2000 mg
Isoleucine
1000 mg
Valine
1000 mg
Target profile
2:1:1

Common BCAA ratios vs yours

Ratio (Leu:Ile:Val)MultipliersYour ratio difference*

*Difference from your normalised ratio (mean absolute error). Lower = closer.

Amino acid amounts

How ratio is calculated

Divide each amino acid by the smallest among the three to get the normalised ratio. Then compare to target multipliers.

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