Rate × Time → Distance (walking / running / cycling totals)
Multiply a per-period rate by a duration to get total distance. Use for walking / running / cycling plans: "2.5 mi/day for 6 weeks".
Limitations: Assumes the rate holds every period with zero rest days. Real training plans include rest days and tapers — build them in separately. Month = 30 days for the span readout; actual months vary.
What to do next: For "2.5 miles per day for 6 weeks", enter rate=2.5, period=Day, duration=42 days (OR rate=17.5, period=Week, duration=6 weeks).