Mobile Unit Refrigeration & Water Tank Calculator

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Developed by the Plan Review Team of the Environmental Health Division of Northern Nevada Public Health.

Facility Information
Number of Meals Supported by Refrigeration on Unit

Based on a meal size of 0.1 cubic feet and 75% usable reach-in capacity.

Total Number of Meals Supported 0 meals
Estimate Reach-In Capacity Using Equipment Dimensions

If total cubic feet is not provided on the specification sheet, the total number of meals supported can be estimated using the interior dimensions of the unit.

inches inches inches
Total Cubic Feet of Reach-In Space at 75% Usable Capacity 0
Total Number of Meals Supported 0 meals
Required Potable Water Tank Size Calculation

Based on the formula: width × depth × height ÷ 231 × 6 + 5.

inches inches inches
Required Size of Potable Water Tank 5 gallons
Fresh Water and Grey Water Tank Volume Calculator

Enter rectangular tank dimensions in inches. Formula: length × width × height ÷ 231.

Fresh Water Tank

inches inches inches
Estimated Fresh Water Tank Capacity 0 gallons

Grey Water Tank

inches inches inches
Estimated Grey Water Tank Capacity 0 gallons
Calculator Formula Summary
Calculator Section Formula Used Output
Meals supported from total cubic feet Total cubic feet × 0.75 ÷ 0.1 Estimated number of meals supported
Usable reach-in cubic feet from dimensions (Width ÷ 12) × (Depth ÷ 12) × (Height ÷ 12) × 0.75 Estimated usable cubic feet
Meals supported from dimensions Usable cubic feet × 0.76 ÷ 0.1 Estimated number of meals supported
Required potable water tank size Width × Depth × Height ÷ 231 × 6 + 5 Estimated potable water tank size in gallons
Fresh water tank volume Length × Width × Height ÷ 231 Estimated fresh water tank capacity in gallons
Grey water tank volume Length × Width × Height ÷ 231 Estimated grey water tank capacity in gallons

Note: This calculator provides estimates only. Equipment capacity and water tank sizing must be verified using manufacturer specifications and applicable inspection requirements.

Last modified on 07/07/2026