Sources & Methodology
Every number on this site comes from an authoritative primary source — an official public-domain U.S.-government publication, or a peer-reviewed reference standard. We don't estimate, round, or paraphrase the standards; we reproduce the published tables exactly.
Each dataset is extracted directly from its source document, encoded into a typed data module, and checked cell-by-cell against the original. The calculators invert those exact tables; no thresholds are hand-typed.
Where a dataset was recovered from a retired program — the Presidential Fitness Test, whose site shut down in 2018 — we triangulated multiple independent recoveries and settled every contested cell against the authoritative GPO image.
We are an independent reference and are not affiliated with or endorsed by the U.S. government, the President's Council on Sports, Fitness & Nutrition, or any branch of the armed forces.
Where each dataset comes from
Presidential Physical Fitness Test standards
President's Council on Physical Fitness & Sports — 1985 National School Population Fitness Survey (85th percentile validated 1998; 50th validated 1994). Recovered from the President's Challenge archive and verified cell-by-cell against the authoritative GPO publication (p. 8). Partial Curl-Up norms: Canada Fitness Award Program; ¼/½-mile: AAU. Public domain (U.S. Government work). Official source
U.S. Army Fitness Test (AFT) scoring scales
Headquarters, Department of the Army — AFT Scoring Scales (Approved 15 May 2025 · effective 1 June 2025). Full 0–100 point scales (6,614 values) extracted from the official PDF and verified cell-by-cell — corroborated by an independent read of the HQDA EXORD and cross-checked against a third-party calculator. Public domain (U.S. Government work). Official source
U.S. Navy Physical Readiness Test (PRT) standards
MyNavyHR / Navy Culture & Force Resilience — Guide-5A Physical Readiness Test (December 2025). All 44 age/sex/altitude scoring tables (528 rows) extracted and verified cell-by-cell against the official PDF. Public domain (U.S. Government work). Official source
U.S. Marine Corps Physical Fitness Test (PFT) scoring
Headquarters, U.S. Marine Corps — MCO 6100.13A (w/ Ch-4) — Tables 2-2, 2-4, 2-5 (Change 4). Pull-up, push-up, plank, and 3-mile run point scales extracted and verified cell-by-cell against the order. Public domain (U.S. Government work). Official source
U.S. Air Force Physical Fitness Readiness Assessment (PFRA) scoring
Headquarters, U.S. Air Force — USAF PFRA Scoring Charts (Effective 1 March 2026). All eight component charts (run, HAMR, WHtR, push-up, hand-release push-up, sit-up, crunch, plank) extracted and verified cell-by-cell. Public domain (U.S. Government work). Official source
VO₂max reference percentiles by age & sex
Kaminsky LA, Arena R, Myers J — Mayo Clinic Proceedings — FRIEND Registry, "Reference Standards for Cardiorespiratory Fitness…" 90(11):1515–1523, Table 3 (2015 (measured treadmill CPX)). Every percentile cell reproduced verbatim from Table 3 ("Men/Women from FRIEND") and verified against the primary publication. The field-test estimation equations are public-domain published formulas (Cooper, Kline, McArdle, Uth, ACSM). Peer-reviewed reference standards; reproduced as published. Official source
Senior Fitness Test normal ranges (ages 60–94)
Rikli RE & Jones CJ — Journal of Aging and Physical Activity — "Functional Fitness Normative Scores… Ages 60–94" 7:162–181 (Senior Fitness Test Manual) (1999 (n = 7,183)). Chair-stand normal ranges verified against the primary; arm-curl and 2-minute-step ranges verified against the published anchors. "Normal range" = the 25th–75th percentile. Peer-reviewed reference standards; reproduced as published. Official source