Science & Environment
Chilled Water GPM from Tonnage Calculator
Calculate required chilled water flow rate in GPM from cooling tonnage and design temperature difference.
Your inputs
Change any value to update the result instantly.
Chilled water flow rate
240 GPM
Cooling load
100 tons
Design ΔT
10 °F
Flow per ton
2.4 GPM/ton
Formula and working
GPM = Tons × 24 ÷ ΔT
- 1
Collect the inputs
Cooling load = 100 tons; Design ΔT = 10 °F
- 2
Apply the formula
GPM = Tons × 24 ÷ ΔT
- 3
Result
Chilled water flow rate = 240 GPM
Frequently asked questions
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
Report a mistake or request an improvement
Tell us if a formula, unit, explanation, or result needs attention. Your message will include this calculator’s name and page.
Related calculators
Condenser Water Flow Rate Calculator
Estimate condenser water flow requirement using the standard 3 GPM per ton rule of thumb.
Cooling Tower Evaporation & Blowdown Calculator
Estimate evaporation, drift and blowdown water losses in a cooling tower from circulation rate and cycles of concentration.
Dehumidifier Water Extraction Calculator
Estimate daily water extraction and latent cooling load removed by a dehumidifier.
Evaporative Cooler Effectiveness Calculator
Estimate evaporative (swamp) cooler leaving air temperature and effectiveness from wet-bulb depression.
Sensible Heat Ratio (SHR) Calculator
Determine the sensible heat ratio of an HVAC cooling cycle from sensible and latent load values.
Thermal Energy Storage Tank Sizing Calculator
Size an ice or chilled water thermal storage tank from cooling load and storage duration.