Load for a target reps and RPE

Find the load for a set of a given number of reps at a target RPE, from a known or estimated one-rep max. Rounded to the nearest 0.5.

Method: Percent of max = the formula read backwards at reps + (10 − RPE): 1 ÷ (1 + n ÷ 30) for Epley, (37 − n) ÷ 36 for Brzycki, 100% for a single at RPE 10.

get/api/tools/rpe-target-load

Request

  • Base URL: https://www.ironledger.app
  • URL: https://www.ironledger.app/api/tools/rpe-target-load
  • Auth: none declared

Query parameters

oneRepMaxnumber required

Your one-rep max (tested or estimated).

repsinteger required

Target reps, 1 to 20.

rpenumber required

Rating of perceived exertion, 5 to 10, read as reps in reserve (RPE 8 = 2 reps left). Half points allowed.

unit'kg' | 'lb'

Weight unit for every load in and out: kg or lb.

formula'epley' | 'brzycki'

One-rep max formula: epley (weight × (1 + reps ÷ 30), the one the IronLedger app uses) or brzycki (weight × 36 ÷ (37 − reps)).

Response

The result, a one-line summary, the method used and a link to the same result on the site.

toolstring required
versionstring
summarystring required
resultobject required
methodstring
urlstring uri required

Changes

No recorded changes to this operation across all 1 revision of this API.