How do I calculate my one rep max?

The most common formula is the Epley formula: 1RM = weight × (1 + reps/30). For example, if you lift 225 lbs for 5 reps: 225 × (1 + 5/30) = 225 × 1.167 = 262 lbs estimated 1RM. The calculator above uses 6 different formulas and averages them for a more accurate estimate. Never attempt a true 1RM without a spotter and proper warm-up.

What is a Wilks score in powerlifting?

The Wilks score is a formula that normalizes powerlifting totals across different body weights, allowing fair comparison between lifters of different sizes. It multiplies your total (or a single lift) by a coefficient derived from your body weight. A Wilks score above 300 is competitive, above 400 is elite. The DOTS coefficient is a newer alternative that many federations now prefer.

How should I warm up for a heavy lift?

A standard warm-up protocol: start with an empty bar for 2 sets of 8–10 reps, then work up in 10–20% increments of your working weight for 3–5 reps each, reducing reps as weight increases. For a 300 lb working set: bar × 10, 95 × 5, 135 × 3, 185 × 2, 225 × 1, 265 × 1, then your work sets. Use the warm-up set calculator tab above.

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1RM Calculator + Plate Calculator

Calculate your one-rep max from any weight and rep count using 6 proven formulas. Then see exactly which plates to load — no mental math, no guessing.

61RM formulas

WilksDOTS score

Warm-upSet generator

LB+KGBoth units

Built and maintained by the Rytell strength team — lifters who program their own training around these exact numbers. Our formulas and standards are drawn from published strength-science research (Epley, Brzycki, Lombardi, and the Wilks/DOTS coefficients) and referenced against the National Strength and Conditioning Association (NSCA). About this tool & our methodology →

Your lift

Weight lifted

Reps completed

Unit

Lift (optional)

Rep quality

Your bodyweight (optional)

Estimated 1-Rep Max

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lbs

All 6 formula estimates

★ Highlighted formula is most accurate for your rep range. Formulas diverge above 10 reps.

Training percentages

% of 1RM	Target weight	Approx reps	Training zone

How to use these percentages: Percentage-based training is the foundation of powerlifting periodization. Work in the 85–95% range for strength development, 70–80% for hypertrophy (muscle building), and 60–70% for speed-strength work. Most programs cycle between these zones over 4–12 week blocks.

Score range	Level	What it means
< 200	Novice	New to the sport — building foundational strength
200–299	Intermediate	Consistent training, respectable numbers
300–399	Advanced	Competitive at local and regional meets
400–499	Elite	National-level competitive range
500+	World class	International / world record territory

Strength standards

Bench press — male (lb)

Bodyweight	Beginner	Intermediate	Advanced	Elite
135 lb	95	150	205	260
155 lb	110	175	240	310
175 lb	125	200	275	360
198 lb	140	225	315	405
220 lb	155	250	350	455
242 lb	170	270	380	500

Back squat — male (lb)

Bodyweight	Beginner	Intermediate	Advanced	Elite
135 lb	125	200	290	385
155 lb	145	235	340	455
175 lb	165	265	385	510
198 lb	185	300	430	575
220 lb	205	330	475	635
242 lb	220	355	510	685

Deadlift — male (lb)

Bodyweight	Beginner	Intermediate	Advanced	Elite
135 lb	155	250	355	465
155 lb	180	290	415	545
175 lb	205	330	470	620
198 lb	230	370	530	700
220 lb	255	410	585	775
242 lb	275	440	630	835

Female strength standards

Bench press — female (lb)

Bodyweight	Beginner	Intermediate	Advanced	Elite
97 lb	45	75	110	150
114 lb	55	90	130	175
132 lb	65	105	150	200
148 lb	70	115	165	220
165 lb	75	125	180	240
181 lb	80	135	195	260

Back squat — female (lb)

Bodyweight	Beginner	Intermediate	Advanced	Elite
97 lb	65	110	165	225
114 lb	75	130	195	265
132 lb	90	150	220	300
148 lb	100	165	240	325
165 lb	110	180	260	355
181 lb	115	195	280	380

Deadlift — female (lb)

Bodyweight	Beginner	Intermediate	Advanced	Elite
97 lb	80	140	205	280
114 lb	95	165	240	325
132 lb	110	190	275	370
148 lb	120	210	300	405
165 lb	130	225	325	435
181 lb	140	240	345	465

Training science

How to train each zone

💪 Max strength (90–100% 1RM)

1–3 reps per set. 3–5 minutes rest between sets. CNS-intensive — limit to 2–3 sessions per week per lift. This zone builds raw neural efficiency and motor unit recruitment. Used by powerlifters in peaking phases.

🔥 Strength (80–90% 1RM)

3–5 reps per set. 2–4 minutes rest. The primary strength development zone for most intermediate and advanced lifters. Programs like 5/3/1, Texas Method, and most powerlifting blocks operate primarily here.

📈 Hypertrophy (65–80% 1RM)

6–12 reps per set. 60–90 seconds rest (for metabolic stress) or 2–3 minutes (for mechanical tension). Most effective for muscle size gains. The primary zone for bodybuilding-style training.

⚡ Speed-strength (55–70% 1RM)

Move the bar as fast as possible for 3–6 reps. Used in Westside Barbell conjugate programming and athletic development. Develops rate of force development (RFD) — how quickly you can produce force.

🏃 Muscular endurance (50–65% 1RM)

15–25+ reps per set. Short rest periods (30–60 seconds). Builds work capacity and metabolic conditioning. Important for sport athletes but limited contribution to raw strength development.

🔬 Why 1RM testing matters

Your true 1RM is the foundation of percentage-based programming. Testing every 4–8 weeks allows accurate adjustment of training loads. Estimated 1RM from submaximal sets (this calculator) is the safest and most common method — true max testing carries higher injury risk.

Frequently asked questions

What is a good squat for my bodyweight? ▼

As a general benchmark for men: squatting your bodyweight is a reasonable beginner milestone; 1.5× bodyweight is solid intermediate; 2× bodyweight is advanced; 2.5× is elite. For women, the benchmarks are roughly: 0.75× bodyweight beginner, 1.25× intermediate, 1.75× advanced, 2.25× elite. These ratios vary significantly by body proportions — taller lifters with longer femurs have a biomechanical disadvantage on the squat. The strength standards tables on this page provide more specific numbers by bodyweight category. Your only meaningful comparison is to your own previous performance.

How much should I be able to deadlift? ▼

General benchmarks for men: 1.0× bodyweight is a beginner target; 1.5× is intermediate; 2.0× is advanced; 2.5× is elite. For women: 0.85× bodyweight beginner, 1.25× intermediate, 1.75× advanced, 2.25× elite. The deadlift has the least technique barrier of the three powerlifts — beginners can often pull respectable weight early. This makes the later learning curve steeper: getting from 2× to 2.5× bodyweight is dramatically harder than 1× to 1.5×. Use the strength standards tables above for specific numbers by bodyweight.

What is RPE in lifting and how does it relate to percentage? ▼

RPE stands for Rate of Perceived Exertion — a scale from 1–10 describing how hard a set felt relative to your maximum. In powerlifting, RPE 10 means maximum effort with no reps left in reserve. RPE 9 means one rep left in the tank. RPE 8 is two reps left, and so on. The approximate relationship between RPE and percentage: RPE 10 ≈ 100% 1RM, RPE 9 ≈ 93–97%, RPE 8 ≈ 88–92%, RPE 7 ≈ 83–87%, RPE 6 ≈ 78–82%. These are approximations — individual lifters vary significantly. RPE-based programming (Juggernaut, RTS) is increasingly popular because it auto-regulates to daily readiness rather than fixing percentages regardless of how you feel.

What is a training max and how do I calculate it? ▼

A training max (TM) is a reduced version of your true 1RM used as the basis for percentage calculations in programs like Jim Wendler's 5/3/1. The standard recommendation is to set your training max at 85–90% of your estimated true 1RM. The reason: training at percentages of a true 1RM leaves you grinding near-maximal weights every session, which is unsustainable. Using 85–90% as the basis means your "100%" training day still has a small buffer — keeping technique cleaner, reducing injury risk, and allowing consistent progress. Example: if your estimated 1RM is 300 lb, your training max would be 255–270 lb, and all program percentages are calculated from that number, not 300.

What is a Wilks score and what's a good one? ▼

The Wilks score normalizes your total lifted weight relative to bodyweight, allowing fair comparison between lifters of different sizes. A Wilks score under 200 is novice; 200–300 is intermediate and competitive at local meets; 300–400 is advanced and competitive at regional/national levels; 400+ is elite; 500+ is world-record territory. The DOTS score has largely replaced Wilks in official competition (the IPF switched in 2020) because DOTS better accounts for heavier weight classes, but Wilks remains widely used for informal comparison.

How accurate is an estimated 1-rep max? ▼

Estimated 1RM calculations are most accurate for sets of 1–5 reps, where all major formulas are within 2–5% of actual max. For sets of 6–10 reps, expect 5–10% variation. Above 10 reps, accuracy degrades significantly. Fatigue, bar speed, technique breakdown, and individual fiber type composition all affect accuracy. Use estimates as a planning guide, not a precise measurement. The Epley formula tends to be most accurate for sets of 1–5, while Brzycki is often cited for general use.

Should I actually test my 1-rep max? ▼

For most intermediate lifters and below, there's rarely a need to actually test a true 1RM — the injury risk outweighs the benefit when you can estimate it accurately from a heavy set of 3–5. True 1RM testing makes sense for competitive powerlifters, coaches needing accurate programming data, and experienced lifters who have mastered technique under maximal load. If you do test, warm up thoroughly with progressively heavier singles and stop when the next attempt would be a miss. Never push to true failure without a qualified spotter or safeties in a rack.

What is a good bench press for my bodyweight? ▼

For men: beginners press roughly 0.7× bodyweight; intermediate is 1.0–1.25×; advanced is 1.5–1.75×; elite exceeds 2×. For women: 0.5× beginner, 0.75× intermediate, 1.0× advanced, 1.35× elite. The bench press is the lift most affected by limb proportions — longer arms create a longer range of motion and mechanical disadvantage, so raw numbers between individuals with very different arm lengths aren't directly comparable. The strength standards tables above provide specific numbers by bodyweight.

What are the standard Olympic barbell plate sizes? ▼

Standard Olympic plates (2-inch hole) come in: 45 lb, 35 lb, 25 lb, 10 lb, 5 lb, 2.5 lb, and 1.25 lb. In kilograms: 25kg, 20kg, 15kg, 10kg, 5kg, 2.5kg, 1.25kg, and 0.5kg. The IWF color standard: red for 25kg, blue for 20kg, yellow for 15kg, green for 10kg, white/grey for smaller plates. American powerlifting gyms typically use red for 45s, but there's no universal US standard. Always confirm actual plate weights at an unfamiliar gym — mislabeled plates are more common than you'd expect.

What percentage of my 1RM should I train at? ▼

For maximum strength: train at 80–95% for low reps (1–5). For hypertrophy (muscle size): 65–80% for moderate reps (6–12). For work capacity: 50–65% for high reps (15–25+). Most effective programs cycle between these zones — a concept called periodization. The percentage table generated by this calculator gives you exact target weights for every meaningful percentage so you don't have to do the math at the gym.

Our methodology & sources

We don't invent numbers. Every estimate this calculator produces comes from a published, peer-reviewed formula, and we show our work so you can check it. When you enter a weight and rep count, we run it through six established one-rep-max equations and report the average:

Epley: 1RM = weight × (1 + reps ÷ 30) — most accurate for sets of 1–5 reps.
Brzycki: 1RM = weight ÷ (1.0278 − 0.0278 × reps) — a common general-purpose formula.
Lombardi: 1RM = weight × reps^0.10 — tends to run slightly higher at high reps.
Also included: the O'Conner, Wathan, and Mayhew equations, for a balanced multi-formula average.

In our own training we lean on the average of these rather than any single formula, because each one drifts in a different direction as reps climb — which is exactly why we average them. Our Wilks and DOTS scores use the official coefficient tables; note that the IPF adopted DOTS over Wilks for competition in 2020, so we report both. The strength-standards tables reflect commonly-cited bodyweight-ratio benchmarks and competition data, cross-referenced with resources from the NSCA and evidence-based coaching sources like Stronger By Science.

Estimates are most reliable at 1–5 reps and degrade above 10. They're a planning guide, not a guarantee — your true max depends on technique, fatigue, and individual physiology.

In-depth guides

📐 1RM formulas compared Epley vs Brzycki vs Lombardi — which to trust and when 📊 Strength standards explained What counts as a good squat, bench, and deadlift for your bodyweight 🏆 Wilks vs DOTS How strength scores work and which one to use in 2026

Training resources

🏋️ r/Powerlifting Programming, form checks, and meet prep discussions 💪 r/Weightroom Intermediate and advanced strength training community 🔬 Stronger By Science Evidence-based strength training research and programming 📊 BarBend Strength sport news, guides, and equipment reviews 🏆 USA Powerlifting Find meets, rules, and records for drug-tested powerlifting 📋 John Meadows Programs Structured hypertrophy and strength programs

💪 Recommended gym equipment & supplements

Gear used by serious lifters — from barbells to chalk.

🏋️ Weightlifting belts Inzer, Rogue, and Pioneer — top-rated powerlifting belts 🔵 Lifting chalk Gym chalk and liquid chalk for better grip on heavy lifts 🪢 Wrist wraps & straps Wrist wraps for pressing, straps for pulling — essential accessories 🥤 Protein supplements Whey, casein, and plant protein — top-rated on Amazon 📊 Bodybuilding.com Supplements, training programs, and workout tracking

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