Your ideal body proportions by golden ratio.
Enter your height and get your target measurements for chest, shoulders, waist, hips, thighs, calves, neck, upper arm and forearm — based on the Steve Reeves model and the golden ratio (φ = 1.618).
Your data
Enter your current measurements in the table on the right to see the gap.
Ideal targets vs. current
| Measurement | Target | Current | Diff |
|---|
How it's calculated
Height × multiplier — the Steve Reeves proportions system
The Steve Reeves proportions model uses your height as the single input and applies research-derived multipliers to each body part. For a man 175 cm (69 in) tall, ideal chest ≈ 119 cm (47 in), ideal shoulders ≈ 128 cm (50 in), ideal waist ≈ 79 cm (31 in), yielding a shoulder-to-waist ratio of ≈ 1.62 — very close to the golden ratio φ = 1.618.
Steve Reeves (1926–2000) is widely considered to have possessed the most symmetrical and aesthetically ideal physique in bodybuilding history. His measurements — and those of other classic-era champions — were analysed to produce height-based multipliers that predict proportions perceived as aesthetically optimal. The shoulder-to-waist relationship converges on the golden ratio (φ ≈ 1.618), a mathematical proportion found in art, architecture and nature that humans consistently rate as beautiful.
Chest = height × 0.681
Waist = height × 0.453
Hips = height × 0.640
Thigh = height × 0.380 | Calf = height × 0.285
Neck = height × 0.243 | Upper arm = height × 0.253
Forearm = height × 0.208
- 1Convert height to centimetres (if entering inches)—
- 2Apply each multiplier to height (cm)—
- 3Convert back to inches if imperial mode is active—
- 4Shoulder ÷ waist = shoulder-to-waist ratio—
Understand the terms
- Golden ratio (φ)
- φ ≈ 1.618034… — a mathematical constant where two quantities are in the same ratio as their sum is to the larger one. Consistently perceived as aesthetically pleasing; the ideal shoulder-to-waist ratio approximates φ.
- V-taper
- The visual silhouette created by broad shoulders tapering to a narrow waist. Quantified by the shoulder-to-waist ratio; a value near 1.618 is considered the classical ideal in physique competition.
- Shoulder-to-waist ratio
- Shoulder circumference divided by waist circumference. A ratio of ≥ 1.5 is generally attractive; values of 1.6–1.7 characterise elite classic physique competitors.
Frequently asked questions — Ideal Proportions
What is the Steve Reeves body proportion model?
How is the ideal shoulder circumference calculated?
What is the golden ratio in body proportions?
Can I use this calculator for any body type?
What is V-taper and how is it measured?
📚 Learn more — official sources
Did this calculator help you?
74 people found these tools useful
📧 Enter your email to confirm — we don't publish it, we only get in touch if we want to use your idea.
About the Ideal Proportions Calculator
The Steve Reeves proportions model applies height-based multipliers to generate ideal circumference targets for nine body parts. The shoulder-to-waist relationship converges on the golden ratio (φ ≈ 1.618), a mathematical constant that humans consistently perceive as aesthetically pleasing. Reeves' physique — built in the 1940s and 50s without the pharmacological assistance common in modern bodybuilding — remains the gold standard for classical aesthetic proportion.
This calculator lets you compare your current measurements against the Reeves targets to identify which body parts need the most development. Pair it with the FFMI calculator to track muscle mass progress, and the Body Fat (Navy) calculator to monitor leanness as you build toward your ideal proportions.