Milking Parlor Throughput

Cows per hour is turns per unit per hour (60 divided by total cycle time) multiplied by the number of units, so throughput does scale linearly with unit count in this model — but the underlying limiting factor is cycle time, not unit count. Doubling units only doubles throughput if you also have enough labor to keep every stall staffed and moving; the calculator assumes full utilization of every unit, which real parlors with limited staff often can't achieve.

Utilization is the ratio of actual milking time to total cycle time (milking time plus unit change time), capped at 100%. A low utilization means a large share of every cycle is spent on prep, attachment, and moving cows rather than actual milk removal — since unit change time is often underestimated in the first place, a low utilization score is a signal to look at workflow and staffing before assuming the parlor itself is undersized.

Hours to milk herd is your actual herd size divided by cows-per-hour throughput — a real, current-herd number. Maximum herd capacity instead assumes a practical 10-hour milking window per session and multiplies your cows-per-hour rate by 10 and by milkings per day, giving a theoretical ceiling on how many cows this parlor configuration could handle, useful for evaluating whether the setup has room for herd expansion.

Milkings per day only multiplies hours-to-milk-herd to get total milking hours per day — it doesn't change cows-per-hour throughput or cycle time at all, since those depend solely on unit count and per-cow cycle time. Switching from 2x to 3x milking is really a labor and cow-comfort decision reflected in the total-hours-per-day output, not something that improves parlor efficiency on its own.