Bench Press Calculator by Age: 1RM and Competition Medians
Estimate bench press 1RM from a set you already completed, then optionally compare your bench-to-bodyweight ratio with a published adult competition median for a selected age group and sex category. Age does not change the 1RM equation. The reference groups pool all bodyweights and describe competition performances, not the general population, a same-weight-class standard or a safe lifting target.
Bench press 1RM and adult competition medians
Use a recent set you already completed with controlled, consistent technique. These formulas estimate performance from load and repetitions; they do not measure your maximum or tell you what is safe to lift. A set stopped far short of its repetition limit can underestimate capacity. You do not need to perform a new maximal attempt or train to uncontrolled failure to use this page.
Runs on this page. Inputs are not sent or saved.
Controls become available after the page finishes loading. If they stay disabled, use the equations and example below.
Formula differences are not a confidence interval. Results vary with technique, exercise and the individual. Keep the same lift variation and equation when comparing sessions. If pain, an injury or a health condition affects exercise, get individual guidance. This is general educational information, not a youth-testing or rehabilitation plan.
Equations and worked example
For 2–10 repetitions: Brzycki-style = load × 36 ÷ (37 − repetitions). Epley = load × (1 + repetitions ÷ 30). No averaging or winner is implied.
At 60 kg × 8: Brzycki = 74.5 kg; Epley = 76.0 kg. At 75 kg bodyweight, their ratios are 0.99× and 1.01×.
These are conventional normalized equations, not bit-for-bit copies of the rounded coefficients printed in LeSuer et al. (1997), Table 1, or a verified implementation of the Setgraph app. Rounding affects display only. Estimates use matching units and remain invariant when units change.
How to Use the Bench Press Calculator
Choose kg or lb, enter the total bench load including the bar, plates and counted collars, and select 1–10 completed repetitions. Use a decimal point.
Choose Calculate estimate. For 2–10 reps, both equations are displayed. One rep is shown only as a recorded single with maximum unknown and cannot produce an estimated-1RM comparison.
For an optional bodyweight ratio, enter bodyweight in the same units and choose Brzycki or Epley. Brzycki is the initial display choice, not a claim that it is more accurate. Recalculate after changing an input or equation.
To compare, first calculate a valid 2–10-rep estimate with bodyweight, choose an adult reference age group and a published sex category, then choose Compare ratios. The age and sex selections describe the reference group; they do not alter your estimated 1RM.
This tool is for adults. Use a controlled set you already completed, without performing a new maximum or training to uncontrolled failure for a result. A set stopped far short of its repetition limit may underestimate capacity. Changing units converts the values; do not mix kilograms for one input with pounds for another.
Equations and a Worked Example
For 2–10 repetitions, the calculator uses Brzycki-style: load × 36 ÷ (37 − reps), and Epley: load × (1 + reps ÷ 30). These conventional normalized equations differ slightly from the rounded coefficients printed in LeSuer et al. (1997), Table 1. They estimate performance and do not measure a maximum.
Suppose an adult records 60 kg for 8 reps and has a bodyweight of 75 kg:
Brzycki-style: 60 × 36 ÷ 29 = 74.4827… kg, displayed as 74.5 kg. Dividing the unrounded estimate by 75 gives 0.99× bodyweight.
Epley: 60 × (1 + 8 ÷ 30) = 76.0 kg. Dividing by 75 gives 1.01× bodyweight.
If you select the female 18–35 competition reference, its published median is 0.96×, with a published 95% confidence interval of 0.96–0.97× from 103,984 competition entries. This is an example reference selection, not a category inferred from the input set.
The ratios compare an estimated gym performance with measured competition results. They do not assign a personal percentile or a novice, intermediate or elite label. Loads are displayed to one decimal and ratios to two; calculations use unrounded values. Converting both load and bodyweight to pounds preserves the ratio.
What the Age Comparison Does and Does Not Measure
This calculator uses only the adult bench-press median, sample-size and confidence-interval entries in Tables 3 and 4 of van den Hoek and colleagues’ 2024 study. The study analyzed worldwide sanctioned drug-tested, unequipped powerlifting results from 1968–2022, drawing on 15 federations in OpenPowerlifting. A competitor’s maximum successful bench was divided by their competition bodyweight. Some lifters contributed more than one competition entry.
The eight reference groups combine bodyweights and weight classes. Dividing by bodyweight does not create a same-weight-class or fully size-adjusted comparison. Age is selected in published bands, not used as a year-by-year adjustment factor.
Published Adult Bench-to-Bodyweight Medians
Each value below is a bench-load/bodyweight ratio: kg/kg and lb/lb are equivalent. The median is the published middle value for the group. The confidence interval (CI) describes uncertainty in that group median; it is not an error interval for your estimate or a range containing 95% of lifters. Counts are competition entries, not unique people.
Female Study Category
Ages 18–35: median 0.96×; published 95% CI 0.96–0.97×; 103,984 competition entries.
Ages 36–59: median 0.90×; published 95% CI 0.90–0.90×; 39,817 competition entries.
Ages 60–79: median 0.72×; published 95% CI 0.71–0.73×; 3,925 competition entries.
Ages 80+: median 0.55×; published 95% CI 0.49–0.59×; 36 competition entries.
Two cautions: for ages 36–59, both published confidence-interval endpoints round to 0.90; that does not mean there is no uncertainty. For ages 80+, the reference contains only 36 competition entries, which may include repeated lifters. Treat that small-group comparison cautiously.
Male Study Category
Ages 18–35: median 1.56×; published 95% CI 1.55–1.56×; 306,061 competition entries.
Ages 36–59: median 1.51×; published 95% CI 1.51–1.52×; 111,152 competition entries.
Ages 60–79: median 1.23×; published 95% CI 1.23–1.24×; 22,289 competition entries.
Ages 80+: median 0.93×; published 95% CI 0.90–0.96×; 789 competition entries.
Reference: van den Hoek et al. (2024), Normative data for the squat, bench press and deadlift exercises in powerlifting, Journal of Science and Medicine in Sport 27:734–742, Tables 3–4. © 2024 The Authors, CC BY 4.0. Adapted by selecting adult bench-press median, confidence-interval and count cells, with interactive comparison and display rounding. Source data: OpenPowerlifting. No endorsement implied.
Limits to Keep Beside the Numbers
Selected competitors: these are historical competition performances, not general-population norms, current-year standards or a description of everyone your age.
Different lift evidence: a gym-set estimate is not a verified competition result. Competition rules, including pauses, differ from some touch-and-go, assisted or equipped gym lifts, and rules vary across federations and time.
Repeated entries: some athletes recur. Training and health histories were unknown, and the study’s confidence intervals have not been independently re-estimated here for repeated lifters.
Drug-tested category: this describes the included competition/category; it does not establish that every entrant was individually tested.
Restricted comparison: only these eight adult medians, confidence intervals and counts are used. There is no weight-class lookup, personal percentile, rank, goal load or predicted aging trajectory. The published 80+ label is not a prediction extending to any possible age.
Age, Training and Individual Context
An age-group median cannot prescribe how often you should bench or what load you should attempt. ACSM’s 2026 resistance-training guidance emphasizes training matched to individual goals and circumstances. Healthy older adults can improve strength with appropriately progressed training; start with current ability rather than assuming that everyone needs the same program at a given age.
The source study includes a 12–17 age group, but this tool deliberately excludes it. Youth training calls for appropriate instruction and qualified supervision, as described in the AAP’s report on resistance training for children and adolescents. This page provides no teenage bodyweight target or self-directed maximal-testing plan.
If pain, an injury, symptoms, a health condition or medication affects exercise, get individual guidance. An estimate does not assess whether heavy lifting is appropriate, and changing to dumbbells or an incline does not automatically solve shoulder pain.
Track Comparable Sets Over Time
Keep the original performance alongside the estimate: date, load and units, completed reps, bench variation, pause or range-of-motion standard, perceived effort and equation. Note a change in technique or equipment before treating a higher number as evidence of greater strength.
The Setgraph workout-tracker feature page describes recording sets, reps and load and reviewing exercise history and trends. You can use those records to compare similar sessions; this web calculator does not import a result into the app or generate an age-specific training plan.
Bench Press Calculator FAQs
What is a good bench press for my age?
There is no universal target. The optional comparison shows the published middle bench-to-bodyweight ratio in one competition reference group. It does not determine what you should lift, your percentile among people your age, or an appropriate training plan.
Does age change my estimated 1RM?
No. Brzycki and Epley use load and repetitions. The age-group selection changes the reference group shown beside your ratio, including its median, confidence interval and competition-entry count. It does not change your estimated 1RM.
Why does bodyweight matter?
The comparison divides estimated bench load by your bodyweight using matching units. The reference still combines competitors of different bodyweights, so it is not a same-weight-class or fully size-adjusted comparison.
Can I use the median as my goal weight?
No. A competition median describes other performances; it is not a recommended load. Use the calculator with a set you already completed, and do not attempt a new maximum to match the reference.
How accurate is a 1RM estimate from reps?
Prediction error varies by person, lift, equation and input set. The tool estimates from 2–10 reps; one rep is a recorded single with maximum unknown. A formula comparison does not establish the error in your own estimate.
Does the calculator consider training experience?
No. It uses load and repetitions for the estimate, plus optional bodyweight and published adult age/sex categories for the comparison. It does not assign novice, intermediate or elite labels.
Can teenagers use the age comparison?
No. This tool is for adults and includes only the study’s adult reference groups. The study also reports a 12–17 group, which is deliberately excluded here. This page is not a self-directed maximal-testing plan for minors.
Can older lifters gain strength?
Yes, healthy older adults can improve strength with appropriately progressed resistance training. A competition median does not determine an individual’s potential, exercise choice or program.
How often should I test my 1RM?
This calculator does not set a testing schedule. A training log or comparable set you already completed may answer your question without a new maximal attempt.
Can I predict my future strength decline?
No. Comparing different age groups in historical competition data does not forecast how one person’s strength will change. Follow your own comparable performances over time.
When should I get individual advice?
If symptoms, an injury, a health condition or medication affects exercise, discuss your plan with an appropriate professional. The calculator does not assess readiness for heavy lifting or prescribe rehabilitation.
What should I log?
Record the date, total load and units, completed reps, bench variation, range or pause standard, and perceived effort. Save the equation used for any estimate so later comparisons use the same method.
Use the Comparison as Context
Start with a set you already completed and keep any comparison tied to its reference group and limitations. The calculator cannot choose your next load. For squat and deadlift estimates, use the general 1RM calculator; for ongoing records, review Setgraph’s workout-tracking features.
