This calculator is useful, when you need to compare/evaluate ergometer score of rowers with different body weights.
Input erg scores and body weights of two rowers, and you will get a weight adjusted score for the second rower (the score needed for equal Power/Weight ratio for these two rowers ) and comparison of these two weight-adjusted scores.
BioRow model vary a power factor from 0.222 for aerobic distances >=2000m, up to 0.333 for shorter distances: this is because lighter athletes are more aerobic, while heavier rowers have an advantage in shorter-anaerobic races.