Methodology page explains formulas and model boundaries
Strength Calculator
Strength Calculator
How Strong
Are You?
This strength calculator helps you estimate your one-rep max, compare your bench press, overhead press, pull-up, barbell row, squat, and deadlift against bodyweight-adjusted standards, and turn one set into an actionable training plan.
18
Calculator pages
9
Guide posts
8
Statistics pages
7
Support pages
Calculator
Instant strength dashboard
No submit button. Change any input and the calculator updates your max estimate, level ladder, percentile, rep table, and projected lift profile immediately.
Formula
Training max
105.0kg
Use 90% of estimated 1RM to keep weekly loading productive instead of inflated.
Estimated 1RM
116.7kg
Bench Press is currently in the Advanced range. You are stronger than about 91% of comparable lifter profiles.
Next target
+3.5 kg to Elite
BeginnerNoviceIntermediateAdvancedElite
Formula spread
Epley
Best fit for low-to-moderate rep sets and the default most lifters use.
116.7
kg
Brzycki
Slightly more conservative at higher reps and useful for coaching estimates.
112.5
kg
Lander
Smooths the curve between Epley and Brzycki for practical programming.
113.7
kg
Training split
Day 1
Competition skill
Bench Press with clean technique and moderate intensity.
82 kg x 5 x 4
Day 2
Volume
Use longer eccentrics or pauses if the weak point is positional.
73.5 kg x 6 x 4
Day 3
Speed + variation
Move every rep fast and stop the set if speed drops hard.
65 kg x 8 x 2
Day 4
Heavy doubles
Use this day to feel heavier load without turning it into a max-out.
89.5 kg x 5 x 2
1RM percentage chart
| Percent | Weight | Reps |
|---|---|---|
| 100% | 116.5 kg | 1 |
| 95% | 111 kg | 2 |
| 90% | 105 kg | 3-4 |
| 85% | 99 kg | 5-6 |
| 80% | 93.5 kg | 7-8 |
| 75% | 87.5 kg | 9-10 |
| 70% | 81.5 kg | 11-12 |
| 65% | 76 kg | 13-15 |
| 60% | 70 kg | 16-18 |
| 55% | 64 kg | 19-20 |
Projected strength profile
Bench
92%
User profileAvg 55%
Squat
99%
User profileAvg 55%
Deadlift
99%
User profileAvg 55%
OHP
99%
User profileAvg 55%
Row
99%
User profileAvg 55%
Pull-Up
67%
User profileAvg 55%
Accessory focus
Pause Bench Press
Builds control off the chest and keeps bar path honest.
Accessory focus
Chest-Supported Row
Improves upper-back stability so pressing stays tighter.
Accessory focus
Rolling Triceps Extension
Adds elbow extension strength for lockout consistency.
Level System
Benchmark tiers designed to show the next step
The UI highlights your current tier, reveals the gap to the next target, and keeps the beginner-to-elite ladder legible on mobile.
Beginner
Novice
Intermediate
Advanced
Elite
Calculator Hub
A full matrix, not a single tool
Cover the entire strength workflow with one site: estimate maxes, build training loads, compare standards, score totals, and load the bar correctly.
Core+
1RM Calculator
Estimate your one-rep max with Epley, Brzycki, and Lander formulas.
Try nowUpper Body+
Bench Press Calculator
Benchmark your bench press strength level, percentile, and training loads.
Try nowUpper Body+
Overhead Press Calculator
Estimate OHP 1RM, compare strict-press standards, and check your push balance ratio.
Try nowUpper Body+
Pull-Up Calculator
Compare bodyweight reps, weighted pull-ups, and assisted pull-up progress with bodyweight factored in.
Try nowUpper Pull+
Barbell Row Calculator
Estimate bent-over row 1RM and check whether your back strength balances your bench press.
Try nowLower Body+
Squat Calculator
Project squat maxes, rep tables, and progression targets by bodyweight.
Try nowPosterior Chain+
Deadlift Calculator
See your deadlift max, intensity zones, and level progression instantly.
Try nowBenchmarks+
Strength Standards
Compare your lifts against bodyweight classes and spot weak links across major exercises.
Try nowMilestones+
Bodyweight Ratio Goals
See the gap and estimated timeline to 2x deadlift, 1.5x bench, 2x squat, and more.
Try nowProgramming+
Training Max Calculator
Turn a tested or estimated 1RM into practical weekly training prescriptions.
Try nowCompetition+
Powerlifting Total Calculator
Calculate total, IPF GL, DOTS, Wilks, percentile, and lift balance from squat, bench, and deadlift.
Try nowCompetition+
Powerlifting Attempt Calculator
Pick openers, seconds, thirds, warm-ups, and contingencies for meet day.
Try nowEquipment+
Plate Calculator
Visualize plate loading, mixed units, and custom barbell setups.
Try nowRelative Strength+
Wilks Calculator
Estimate Wilks-style relative strength points from bodyweight and total.
Try nowRelative Strength+
DOTS Calculator
Compare powerlifting totals across bodyweights with DOTS scoring.
Try nowStatistics+
Pearson Correlation
Compute correlation significance from Pearson r and sample size.
Try nowStatistics+
R-Squared Guide
See how much of a correlation is actually explained with an interactive R² visualizer.
Try nowStatistics+
Correlation P-Value
Test whether a Pearson correlation is statistically significant from r and sample size.
Try nowStandards Preview
See the gap to your next tier
Preview real thresholds from the current standards model by sex, unit, and bodyweight class before opening the full explorer.
Gender
Unit
Bodyweight class
| Lift | Beginner | Novice | Intermediate | Advanced | Elite |
|---|---|---|---|---|---|
| Bench Press | 38.5 kg | 59.5 kg | 81 kg | 102 kg | 127.5 kg |
| Back Squat | 51 kg | 76.5 kg | 106.5 kg | 132 kg | 157.5 kg |
| Conventional Deadlift | 59.5 kg | 89.5 kg | 119 kg | 146 kg | 174 kg |
Why trust the site
Transparent by design
The strongest trust signal for a calculator site is not a flashy counter. It is clear methodology, direct contact information, and straightforward explanations of what is modeled, what is estimated, and what is not claimed.
Published methodology
Formulas, benchmark logic, and percentile modeling limits are documented instead of hidden behind a black box.
Browser-first tools
Most calculators run directly in the browser with immediate updates, so the core workflow is transparent and fast.
No account wall
Visitors can use the calculators without creating an account or giving an email just to get a result.
Direct contact paths
Contact, privacy, cookie, and terms pages are all live and linked so users can verify who operates the site.
Trust Signals
Legal pages cover privacy, cookies, terms, about, and contact
CSV export and local-history features exist on selected tools
Calculator pages explain when outputs are modeled rather than live
What the pages do well
Calculator pages
Combine tools with explanation so the page is useful even before a user enters numbers.
Reference pages
Privacy, cookie, contact, about, terms, and methodology pages make site ownership and policy context easy to verify.
Modeled output disclosures
Pages that estimate percentiles explain that the ranking is modeled, not presented as a live external leaderboard.
Blog
Guides that connect directly to the tools
The article library focuses on practical lifting questions and points readers toward the calculator or standard page that actually solves the next step.
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What does a strength calculator do?
A good strength calculator does more than output one number. It estimates your one-rep max from a recent set, converts that result into practical training percentages, and shows where the lift belongs on a beginner-to-elite benchmark ladder. That matters because raw load alone is a poor comparison. A 120 kg bench press means something different for a 67 kg lifter than it does for a 110 kg lifter, and a serious strength calculator needs to reflect that difference.
This static site is built around that idea. The calculator is immediate, the standards are visible, and the supporting pages explain how one-rep max formulas, bodyweight classes, and relative strength scores fit together. If you want to estimate a max, check standards, or plan loads for the week, the goal is to keep the answer on one domain instead of scattering it across multiple tools.
Why bodyweight-adjusted standards matter
Strength standards are useful because they normalize the comparison. Heavier lifters usually move more absolute load, while lighter lifters often display stronger relative ratios. The most useful ranking system acknowledges both realities. That is why the standards pages on this site focus on bodyweight, sex category, exercise, and current level instead of pretending one universal number defines “strong.”
If you are deciding where to go next, start with the one rep max calculator, then compare the result inside strength standards. If you train with a barbell regularly, the barbell plate calculator and the supporting blog guides fill in the rest of the workflow.
Training Context
Find the right calculator for your training context
Strength Calculator is an online strength calculator built for lifters who need more than a single rep-max number. If you want an online 1RM calculator for powerlifters, a strength standards calculator for men and women, or a bench press calculator for gym lifters, the goal is to keep the workflow on one site.
The toolset also covers meet-prep and barbell logistics. Use the DOTS calculator for powerlifting meet prep, the powerlifting total calculator for meet day attempts, the training max calculator for 5/3/1 lifters, and the plate calculator for kg and lb barbellswhen you need exact loading instead of rough estimates.
The site is written for an international English-speaking audience, so the same pages work whether you train in the US, Canada, the UK, Australia, or Europe. That matters when one lifter needs a squat strength standards guide for intermediate lifters using kilos and another needs a deadlift or Wilks comparison for a local powerlifting federation using pounds.
Start with the calculator directory, run the numbers in the tool that matches your goal, and then use the blog guides, methodology page, and contact page if you need more context or want to verify how a modeled result was produced.