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Fitness Medium #1rm#percentage#load

1RM Percentage Chart

Reps achievable at each percentage of one-rep max, from 100% (1 rep) to 60% (~20 reps).

A free, animated 1rm percentage chart you can read here or embed on any website, from Scrollchart.

1RM Percentage Chart

1RM Percentage Chart

A descending bar chart pairing each %1RM with the average number of reps a trained lifter can complete to failure. 100% paired with 1 rep, 90% with 4, 80% with 8, 70% with 12, 60% with 20. Strength, hypertrophy, and endurance bands are shaded across the chart so a programmer can see where each rep range lives.

Good for

  • Programming articles for powerlifters
  • Beginner explainers of "what % to lift at"
  • Strength-vs-hypertrophy comparison posts

Source & accuracy

This 1rm percentage chart is an editorial illustration built to represent the concept accurately. Where it shows figures, they are typical or representative values chosen to make the relationship clear, not a single underlying dataset. The diagram and its explainer are reviewed and maintained centrally, and updated over time as understanding improves.

How reps map to a percentage of your max

A one-rep max (1RM) is the heaviest load that can be lifted once with good form. Percentage charts estimate how many repetitions are typically possible at fractions of that max: roughly one rep near 100 percent, a handful around 85 to 90 percent, and progressively more as the percentage drops, with very high rep counts in the lighter ranges. These charts let a program prescribe load as a percentage rather than guessing absolute weight.

The numbers are estimates, not laws. The reps achievable at a given percentage vary by the lift, training experience, and how the percentage was tested. Many lifters can do more reps on a leg press than a bench press at the same percentage, for instance.

Using percentages safely

Because true 1RM testing is fatiguing and carries some risk, many lifters estimate it from a multi-rep set using a prediction formula, accepting that accuracy falls as the rep count rises. Programs increasingly pair percentage targets with measures like reps in reserve to account for daily readiness.

This is general educational information, not individual programming or medical advice. Attempting maximal loads requires proper technique, warm-up, and ideally a spotter or qualified supervision.

Embed this diagram

Add this animated 1rm percentage chart to your own site. Copy one line of HTML, or use the embed builder for theme and sizing options.

Reference

What this is
A free, embeddable, animated 1rm percentage chart for any website.
Who uses it
Fitness blogs, Coaches & personal trainers, Bodybuilding & physique sites.
How to embed
Copy one line of HTML. No signup. No watermark. Works in WordPress, Webflow, Ghost, Substack, plain HTML.
File size
iframe embed, ~80 KB gzipped (loads on demand, does not block your page paint).
License
Free forever. Editorial explainer text included; updated centrally over time.
URL
scrollchart.com/diagram/strength-1rm-percentages

Embed format options

Copy the universal HTML snippet, the WordPress shortcode, or an iframe fallback - see the WordPress plugin page for details. Any format keeps the same Core Web Vitals profile and the same explainer text.

Embed snippet 
<div data-scrollchart="strength-1rm-percentages" data-scrollchart-v="1"></div>
<script src="https://scrollchart.com/embed.js" async></script>

By embedding, you acknowledge the diagram and explainer text are served from scrollchart.com and may be updated from time to time to reflect new research or to link to relevant sources within the explainer.

Frequently asked questions

Where can I get a free animated "1RM Percentage Chart" for my website?
Scrollchart provides "1RM Percentage Chart" as a free, embeddable animated diagram you can add to any website with one line of HTML. No signup is required and there is no watermark. The diagram and its explainer text are served from scrollchart.com, so the embed stays current without any maintenance on your end.
How do I embed a 1rm percentage chart diagram in a health or wellness blog?
Copy the HTML snippet from the Scrollchart diagram page and paste it into any post or page in your CMS. It works in WordPress, Webflow, Ghost, Substack, and plain HTML without any plugin or account. The diagram renders as animated SVG directly in your page, so search engines can index the accompanying explainer text.
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