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Overhead Press Calculator

Estimate your Overhead Press 1 rep max (1RM) from any weight and reps, then see how you rank against strength standards for your bodyweight and sex. Supports kg and lbs.

OHP 1RM Calculator

Uses Epley, Brzycki & Lombardi formulas

Unit System
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Estimated 1RM

The overhead press (OHP) is a compound barbell movement pressing the bar from shoulders to lockout overhead. Your 1RM is estimated using the average of three validated formulas: Epley (w × (1 + r/30)), Brzycki (w × 36/(37-r)), and Lombardi (w × r^0.10). Strength levels are then compared by ratio of 1RM to bodyweight.

OHP Strength Standards by Bodyweight (1RM Ratio)

LevelMale (1RM / BW)Female (1RM / BW)
Beginner0.5×0.3×
Novice0.65×0.4×
Intermediate0.80×0.55×
Advanced1.0×0.70×
Elite1.25×0.90×

How to Improve Your Overhead Press

The overhead press responds well to frequency and volume. Pressing 2–3 times per week using progressive overload (adding small weight increments every session or every week) is the most effective strategy for intermediate and advanced athletes. Address the most common sticking point — the first few inches off the shoulder — with pause reps and pin presses. Accessory movements that carry over strongly include the push press, seated dumbbell press, and lateral raises. Improving thoracic spine extension and shoulder external rotation mobility removes technique limiters and allows safer, more efficient pressing mechanics.

Frequently Asked Questions

Males: Beginner = 0.5× BW, Intermediate = 0.8× BW, Advanced = 1.0× BW, Elite = 1.25× BW. Females: Beginner = 0.3× BW, Intermediate = 0.55× BW, Advanced = 0.70× BW, Elite = 0.90× BW. A 80 kg male pressing 80 kg (1.0× BW) is considered advanced — approximately the top 10–15% of gym-goers.
Primary: anterior and medial deltoids, upper pectoralis major (clavicular head), triceps brachii. Secondary: serratus anterior, upper trapezius, lateral deltoid, and the entire core musculature for spinal stabilisation. The OHP is one of few exercises that directly loads all three deltoid heads simultaneously, making it the most efficient shoulder mass builder.
Most effective strategies: (1) Press 2–3× per week with progressive overload. (2) Work close to your 1RM — sets of 3–5 reps in the 80–90% range. (3) Use pause reps at the chest to eliminate momentum. (4) Add accessory work: push press, landmine press, lateral raises, and face pulls. (5) Improve shoulder external rotation and thoracic mobility. Linear progression adds 1–2.5 kg per session for beginners.
Not inherently. Common causes of pain: excessive elbow flare, internally rotated shoulders, excessive forward lean, poor wrist position, or too much weight. Keep the bar over your wrist and elbow, maintain torso rigidity, engage your lats to create stability, and don't use momentum to muscle through the sticking point. Build up gradually and warm up the shoulder joint thoroughly before heavy sets.

Related Calculators

One Rep Max CalculatorCalculate 1RM for any lift from any reps and weight.Calculate → Bench Press CalculatorBench press 1RM and strength standards.Calculate → Strength Level CalculatorCompare your lifts to the world population.Calculate → Progressive Overload CalculatorPlan week-by-week load progression.Calculate →