Science & Environment
Geothermal Heat Exchanger Loop Length & Depth Calculator
Estimate the required ground loop length and borehole depth for a geothermal heat pump system.
Your inputs
Change any value to update the result instantly.
Total loop length required
703.4 m
Depth per borehole
351.7 m
Heat pump thermal capacity
14,068 W
Number of boreholes
2
Formula and working
loop length = heat pump capacity ÷ heat extraction rate per unit length
- 1
Collect the inputs
Heat pump capacity = 4 tons; Ground heat extraction rate = 20 W/m; Number of boreholes = 2
- 2
Apply the formula
loop length = heat pump capacity ÷ heat extraction rate per unit length
- 3
Result
Total loop length required = 703.4 m
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.
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