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Calcimator

Commercial Laundry Sizing Calculator

Equipment sizing from daily poundage processed.

Inputs

Results

Required capacity (lb)

393

Washers (60 lb)7
Dryers needed11
Water (gal/day)6,000
Steam (lb/hr)300
Floor space (sq ft)900
How to Use This Calculator
  1. Enter the total daily laundry volume in pounds.
  2. Set the number of operating hours per day and the number of washer turns (complete wash cycles) per day.
  3. Adjust the average load factor to reflect typical machine utilization (0.5-1.0).
  4. Review the required washer capacity and the number of washers and dryers needed.
  5. Check the estimated daily water use, steam boiler capacity, and floor space needed for the equipment.

How the result changes with Daily pounds

Daily poundsRequired capacity (lb)
10,0901,979
35,0656,876
65,03512,752
90,01017,650

What each input means

Daily pounds
Total pounds of laundry processed per day.
Operating hours/day
Hours of plant operation per day.
Washer turns/day
Number of complete wash cycles per machine per day.
Load factor (0.5-1.0)
Average machine utilization (0.85 = 85% capacity).

What each result means

Required capacity (lb)
Total washer capacity needed per turn.
Washers (60 lb)
Number of 60 lb washer-extractors.
Dryers needed
Number of dryers (1.5x washer count).
Water (gal/day)
Daily water consumption.
Steam (lb/hr)
Steam boiler capacity needed.
Floor space (sq ft)
Approximate equipment floor space.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Daily pounds = 2000, Operating hours/day = 10, Washer turns/day = 6, Load factor (0.5-1.0) = 0.85 = 4 input(s) provided
  2. Calculate Required capacity
    Required capacity = ceil(lbPerTurn / avgLoadFactor)
    393 = 393
  3. Calculate Washers
    Washers = ceil(washerCapacityLb / 60)
    7 = 7
  4. Calculate Dryers needed
    Dryers needed = ceil(numWashers * 1.5)
    11 = 11

Engine last updated . Checked against 3 independently-derived tests — how we verify calculators.

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