Free bench press calculator
See how much you can really bench without a max attempt. Enter the weight you lifted, the reps you got, and (optionally) your bodyweight in kg or lb, and the calculator returns your estimated one-rep max from the Epley and Brzycki formulas, a full rep-max table, and where your bench ranks against the strength standards — updated live, as you type.
On this page14 sections
| Reps | % of 1RM | Weight (kg) |
|---|---|---|
| 1 | 96.8% | 110.9 |
| 2 | 93.8% | 107.4 |
| 3 | 90.9% | 104.2 |
| 4 | 88.2% | 101.1 |
| 5 | 85.7% | 98.2 |
| 6 | 83.3% | 95.5 |
| 7 | 81.1% | 92.9 |
| 8 | 78.9% | 90.5 |
| 9 | 76.9% | 88.1 |
| 10 | 75.0% | 85.9 |
Percentages from inverse Epley, so a single rep sits near 97%, not 100%.
| Ratio | Level | Meaning |
|---|---|---|
| under 0.75x | Beginner | Building base pressing strength. |
| 0.75 - 1.0x | Novice | A solid foundation from consistent training. |
| 1.0 - 1.25x | Intermediate | Benching about your bodyweight. |
| 1.25 - 1.5x | Advanced | Well above the typical gym-goer. |
| 1.5x and up | Elite | Exceptional, competition-class pressing. |
Community rule of thumb, not an official standard. Not sex- or age-adjusted.
An estimate from a submaximal set, not a guaranteed max. Strength bands are a community rule of thumb. Bench press standards
Results are estimates. Consult a professional.
What is a bench press calculator?
A bench press calculator estimates your one-rep max (1RM) — the heaviest weight you could press for a single rep — from a set you have actually done. Instead of risking a true max attempt, you enter the weight you lifted and the number of reps you got, and the calculator predicts your 1RM using proven formulas. It is the fastest, safest way to answer the gym's oldest question: how much can I really bench?
This calculator does three things at once. It estimates your bench-press 1RM two ways — by the Epley and Brzycki formulas — and shows their average as the headline number. It builds a rep-max table so you can see the weight to use for any rep target from 1 to 10. And, if you add your bodyweight, it tells you where your bench ranks against the common strength standards. Everything updates live as you type, in either pounds or kilograms.
How your bench press 1RM is estimated: Epley vs Brzycki
The calculator estimates your 1RM with the two most widely used submaximal formulas, then averages them. Both take the same two inputs — the weight lifted and the reps completed — and project the single rep you could manage.
The two formulas agree closely at low reps and drift apart as reps climb. Epley scales linearly and tends to read slightly higher; Brzycki is a little more conservative as reps rise. Crucially, Brzycki has a built-in limit — its denominator (37 − reps) collapses toward zero near 37 reps, so the formula is only meaningful in a normal training range. That is why this calculator only estimates from sets of 1 to 12 reps: below about 10 reps the prediction is most trustworthy, and beyond it both formulas overshoot.
Because no single equation is perfect for every lifter, the average of the two is the most reliable everyday number — research consistently finds that averaging formulas predicts better than any one alone. Working in pounds or kilograms makes no difference to the math: the formulas are unit-agnostic, so your 1RM comes back in whatever unit you entered.
How to use the bench press max calculator
Getting an accurate estimate takes three steps and a single honest set:
- Pick a recent, hard set. Use a set you took close to failure — ideally 1 to 10 reps with a controlled touch to the chest. Fresh sets (not the last set of a long session) predict best.
- Enter the weight and reps. Type the load on the bar and the reps you completed, in pounds or kilograms. The calculator returns your estimated 1RM instantly.
- Read your numbers. The headline is your average estimated 1RM; the stat grid shows Epley, Brzycki, and (with bodyweight) your strength level; the rep-max table shows the weight for every rep target.
A worked example using the bench press calculator
Sam just benched 100 kg for 5 clean reps and wants to know his one-rep max without testing it. Here is exactly what the calculator does with that set.
Step 1 — Apply the Epley formula
Epley multiplies the weight by (1 + reps ÷ 30): 100 × (1 + 5/30) = 100 × 1.1667 = 116.7 kg.
Step 2 — Apply the Brzycki formula
Brzycki multiplies the weight by 36 ÷ (37 − reps): 100 × 36 / (37 − 5) = 3600 / 32 = 112.5 kg. Notice it reads a touch lower than Epley — that is the expected, more conservative result.
Step 3 — Average the two
The headline estimate is the average: (116.7 + 112.5) ÷ 2 = 114.6 kg. That is Sam's estimated bench-press 1RM.
Bench press percentage chart: the rep-max table
Once you know your 1RM, you can work out the weight to use for any rep target. The table below shows the percentage of your 1RM you can expect to press for 1 to 10 reps. It is derived from the same Epley relationship the calculator uses, so it never contradicts your headline number — which is also why a single rep sits near 97% rather than a flat 100%.
| Reps | % of 1RM | Example: 100 kg 1RM |
|---|---|---|
| 1 | 96.8% | 96.8 kg |
| 2 | 93.8% | 93.8 kg |
| 3 | 90.9% | 90.9 kg |
| 4 | 88.2% | 88.2 kg |
| 5 | 85.7% | 85.7 kg |
| 6 | 83.3% | 83.3 kg |
| 7 | 81.1% | 81.1 kg |
| 8 | 78.9% | 78.9 kg |
| 9 | 76.9% | 76.9 kg |
| 10 | 75.0% | 75.0 kg |
Percentages from the inverse Epley relationship (% = 100 / (1 + reps/30)). Individual rep capacity varies with training and the lift.
Use it to program sets: if your bench 1RM is 100 kg and a session calls for sets of 5 at roughly 85%, you load about 85 kg. The live calculator scales every row to your estimated 1RM automatically.
Bench press standards: how much should you bench for your bodyweight?
There is no official bench-press standard, but coaches and strength sites broadly agree on bands expressed as a multiple of your bodyweight. They are a quick rule of thumb — not adjusted for age or sex — but they answer the everyday question better than a raw number does, because a 100 kg bench means something very different for a 70 kg lifter than for a 110 kg lifter.
| Bench 1RM ÷ bodyweight | Level | What it means |
|---|---|---|
| under 0.75× | Beginner | Building base pressing strength and technique |
| 0.75 – 1.0× | Novice | A solid foundation from consistent training |
| 1.0 – 1.25× | Intermediate | Benching about your bodyweight — a strong, common milestone |
| 1.25 – 1.5× | Advanced | Well above the typical gym-goer |
| 1.5×+ | Elite | Exceptional, competition-class pressing |
Community rule of thumb aggregated across strength sites and coaches — not an official standard, and not sex- or age-adjusted. Women's pressing standards run lower in absolute terms.
For context, the often-quoted average gym bench is roughly 215–220 lb (about 100 kg) for men and around 100–105 lb for women, which lands most trained men near the intermediate band. Benching your own bodyweight is the classic intermediate milestone; pressing 1.5× bodyweight or more is genuinely advanced-to-elite. Add your bodyweight to the calculator and it places your estimated 1RM in one of these bands automatically.
How to increase your bench press
Your bench climbs when you press progressively heavier loads with sound technique and enough recovery to adapt. The biggest levers:
- Train in the right rep ranges. A common split is spending most of your bench volume around 4–6 reps at roughly 75–85% of your 1RM, with some heavier 1–3 rep work at 90–95% to build top-end strength.
- Apply progressive overload. Add a little weight or a rep over time rather than maxing every session. Small, consistent jumps drive the estimated 1RM up faster than random heavy days.
- Build the supporting muscles. Strong triceps, shoulders, and upper back move the bar and stabilise the press — close-grip bench, overhead press, and rowing all carry over.
- Fix technique and recovery. A tight arch, retracted shoulder blades, leg drive, and a consistent bar path turn the same effort into more kilograms. Sleep and adequate protein let the work stick.
Re-check your estimate every few weeks from a fresh hard set. Want to predict every lift, not just bench? Use the one-rep max calculator for any exercise, and if you also squat and deadlift, the Wilks calculator scores your full powerlifting total pound for pound.
Is it safe to estimate your bench max?
Estimating from a submaximal set is the whole point — it is safer than a true 1RM attempt because you never grind a single max rep without spotters. But the estimate is only as good as the set you feed it. For the most accurate prediction, use a set of about 1–10 reps taken close to failure with clean form; very high-rep sets and sloppy reps inflate the number. Pressing too far past failure also fatigues your stabilisers, so the same weight feels heavier on the next set and the prediction drifts.
Treat the result as a moving target rather than a fixed ceiling. Your true single-rep strength changes with sleep, stress, how recently you trained chest, and even the time of day, so the estimate is best read as a range around the number rather than an exact figure. Re-test from a fresh set every few weeks and look at the trend — a 1RM that climbs steadily is the real signal, not any one day's reading.
Data sources and methodology
The 1RM estimates use the Epley formula (1RM = w × (1 + reps/30)) and the Brzycki formula (1RM = w × 36 / (37 − reps)), and report their average as the headline. Both are well-validated for low-rep submaximal sets; this calculator restricts estimates to 1–12 reps, where they are most reliable and where Brzycki stays clear of its mathematical singularity. The rep-max percentages are derived from the inverse Epley relationship so the table is consistent with the headline. Strength-standard bands (× bodyweight) are a community rule of thumb aggregated across strength sites and coaches, not an official, sex- or age-adjusted standard.
Epley B. (1985) and Brzycki M. (1993), submaximal 1RM prediction equations; bodyweight strength bands aggregated from popular strength-standard references (e.g. Strength Level, ExRx).Frequently asked questions about the free bench press calculator
About this bench press calculator
This bench press calculator runs entirely in your browser. The values you type never leave your device. It estimates your one-rep max from a submaximal set with the Epley and Brzycki formulas, averages them, builds a rep-max table, classifies your bench against the bodyweight strength bands, and updates instantly on every change.
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