3FS Rural Home
Calculators
Rural home calculators
Five quick estimators. Everything runs in your browser; nothing you type is sent anywhere.
Call Mae: (229) 297-USDA (297-8732). Mae is an AI assistant that answers around the clock, takes your ZIP and household size, and texts you the link. A person follows up.
Payment estimator
Income vs. the county limit
Build-cost estimator
Rough national ranges, estimate only, UNVERIFIED for your county. Get local bids.
Energy: code R-values, yearly cost, solar size
Source for R-values: 2021 IECC Table R402.1.3. Confirm with your local building department.
Water & septic
All dollar figures above are placeholders you edit: UNVERIFIED for your county. The 150 gallons per day per bedroom figure is a common planning number; your county health department sets the rule.
Calculators are for planning. Nothing here is a loan offer, a quote or an approval.