Olympic Weightlifting Calculator

Calculate your IWF total, Sinclair coefficient score, and weight class from your snatch and clean & jerk. Compare against world-class benchmarks.

🏓 Lift Data

Sex
Total = Snatch + C&J
Sinclair = Total × 10(A × log₂₀(BW/b)²)
IWF Total
—
Enter both lifts to see your total
Sinclair
—
Weight Class
—
Snatch : C&J
—

📈 Sinclair Score Comparison

The Sinclair coefficient normalizes totals across all body weight categories so lifters of any size can be compared on equal footing. The bars below show approximate world-class Sinclair scores per weight class; the dashed line shows your score once you enter your lifts. Your weight class is highlighted in the brighter bar.

🏁 IWF Weight Classes

Class Body Weight World-Class Total Your Total Gap

World-class totals are approximate elite competition benchmarks (IWF 2024). Your current weight class row is highlighted. Source: International Weightlifting Federation.

How to Use the Olympic Weightlifting Calculator

1
Enter Your Lifts
Type your best snatch and clean & jerk in kilograms — use your competition total or tested personal bests.
2
Add Body Weight
Enter your body weight in kg to unlock your IWF weight class classification and Sinclair coefficient score.
3
Explore the Tabs
Switch to Sinclair Comparison to see your score vs. world-class benchmarks across all weight classes, or check Weight Class for reference totals.

Formulas & Key Terms

Total
Total = Snatch + Clean & Jerk
Sinclair Coefficient (IWF 2024–2028)
Sinclair = Total × 10^(A × (log₂₀(BW ÷ b))²)  if BW < b Sinclair = Total  if BW ≥ b Male:   A = 0.722762521   b = 175.508 kg Female: A = 0.787004341   b = 153.655 kg
Snatch-to-C&J Ratio
Ratio = Snatch ÷ Clean & Jerk × 100%  (elite range: 78–85%)

Key Terms

Snatch A lift where the barbell is raised from the floor to overhead in a single continuous movement. Tests explosive power and mobility.
Clean & Jerk A two-phase lift: the barbell is first brought to the shoulders (clean), then driven overhead (jerk). Typically 15–22% heavier than the snatch.
Total The sum of the lifter's best valid snatch and best valid clean & jerk in competition. The primary scoring metric in Olympic weightlifting.
Sinclair A bodyweight-normalized score that allows fair comparison of lifters across all weight categories. Higher = greater relative strength. Updated each Olympic cycle.
IWF International Weightlifting Federation — the global governing body that sets the rules, weight classes, and Sinclair coefficients for Olympic weightlifting.

Understanding Olympic Weightlifting Scoring

The Two Lifts

Olympic weightlifting competitions consist of two disciplines: the snatch and the clean & jerk. In the snatch, the barbell travels from the floor to an overhead locked-out position in one uninterrupted motion. The clean & jerk breaks this into two phases — first cleaning the bar to the shoulders, then jerking it overhead. Athletes receive three attempts at each lift, and only their best valid attempt from each discipline counts toward the Total.

Why the Sinclair Score Matters

A 73 kg lifter totaling 350 kg and a 109 kg lifter totaling 400 kg are performing at very different levels of relative strength. The Sinclair coefficient — a mathematical formula based on the theoretical maximum body weight — normalizes these totals so coaches, fans, and athletes can meaningfully compare performance across all weight classes. The current coefficients, valid for the 2024–2028 Olympic cycle, are published by the IWF and updated every four years.

The Snatch-to-C&J Ratio

Most elite Olympic weightlifters have a snatch-to-clean & jerk ratio between 78% and 85%. A ratio below 78% typically indicates a snatch weakness relative to the C&J, while a ratio above 85% may suggest the C&J has more room to grow. Balanced development of both lifts is key to maximizing the Total.

Frequently Asked Questions

How is Olympic weightlifting scored?

Each lifter gets three attempts per lift (snatch and clean & jerk). The best valid snatch plus the best valid clean & jerk forms the Total. Rankings are determined by Total; if two lifters achieve equal Totals, the lighter athlete ranks higher. A lifter who fails all three attempts at one lift is disqualified from the competition (DNF).

What is the Sinclair coefficient and why does it matter?

The Sinclair coefficient is a bodyweight-normalizing multiplier developed by Roy Sinclair that allows fair comparison between lifters of different body weights. The formula uses a logarithmic curve based on the observed relationship between body weight and lifting performance. Coefficients are updated every Olympic cycle. A higher Sinclair score indicates greater strength relative to body weight, regardless of weight class.

What are the current IWF weight classes?

Since the 2018 IWF revision, men compete in: 55, 61, 67, 73, 81, 89, 96, 102, 109, and 109+ kg. Women compete in: 45, 49, 55, 59, 64, 71, 76, 81, 87, and 87+ kg. These categories replaced the previous class structure used before 2018 and are used at the Olympic Games, World Championships, and most international competitions.

What is a good snatch-to-clean & jerk ratio?

Elite Olympic weightlifters typically have a snatch-to-clean & jerk ratio between 78% and 85%. For example, a lifter with a 140 kg snatch would typically clean & jerk 165–180 kg. A ratio below 78% often signals the snatch is lagging; above 85% may indicate headroom in the clean & jerk. This ratio is useful for identifying which lift to prioritize in training.

What Sinclair score is considered elite?

For men: a Sinclair above 380 represents Olympic/World Championship caliber; 300–380 is national/international elite; 220–300 is competitive at higher-level meets. For women, elite scores start around 260+. Most recreational weightlifters score below 200. The all-time men's record (Lasha Talakhadze) exceeds 500 Sinclair points.