Free Tiny House Tools & Resources
Access free tools and calculators designed to help you plan, research, and navigate your tiny house journey. From zoning regulations to cost estimators, we've got the resources you need.
AVAILABLE TOOLS
Our collection of free tiny house planning tools helps you make informed decisions at every stage of your journey. From budgeting and zoning research to energy calculations, these calculators provide accurate estimates based on real-world data to help you plan with confidence.
Tiny House Cost Calculator
Estimate the total cost of building your tiny house. Calculate expenses for foundation, systems, add-ons, and apply DIY savings to get an accurate budget for your project.
Use Cost CalculatorOff-Grid Solar Calculator
Size your off-grid solar system. Estimate solar panel wattage, battery bank capacity, inverter requirements, and charge controller sizing based on your daily energy consumption.
Use Solar CalculatorTiny House Zoning Finder
Search comprehensive zoning regulations across 20 U.S. states. Find ADU laws, Appendix Q adoption, THOW restrictions, and county-by-county building codes.
Use Zoning FinderTiny House Mortgage Calculator
Calculate monthly mortgage payments for tiny houses. Estimate loan costs with adjustable interest rates, down payments, and loan terms to plan your purchase budget.
Use Mortgage CalculatorTiny House Investment Calculator
Calculate potential rental income and ROI for tiny house investments. Project yearly revenue, operating costs, and profitability for Airbnb or long-term rentals.
Use Investment CalculatorTiny House Weight Calculator
Estimate your tiny house total weight based on trailer dimensions and construction materials. Plan for towing capacity and ensure safe transportation.
Use Weight CalculatorWhy Use These Tools?
Save Time & Money
Research critical information before making expensive decisions. Our tools help you understand zoning restrictions, costs, and requirements upfront.
Make Informed Decisions
Access data-driven insights for planning your tiny house journey. Compare regulations across states and calculate realistic budgets.
Free & Updated
All tools are completely free to use and regularly updated with the latest zoning laws, building codes, and pricing data.
Expert Guidance
Built by tiny house experts and updated with feedback from builders, owners, and planning departments nationwide.
Frequently Asked Questions
Are these tiny house calculators really free to use?
Yes, all of our tiny house planning tools are completely free to use with no registration required. We provide these calculators to help people make informed decisions about tiny house living, and we update them regularly with the latest data.
How accurate are the cost estimates from the calculators?
Our calculators use real-world pricing data from 2025-2026 and are updated regularly. The Cost Calculator provides estimates based on actual builder quotes and material costs. However, final costs can vary based on your location, specific choices, and market conditions. We recommend using these estimates as a starting point for your budget planning.
Which states are covered by the Zoning Finder tool?
The Zoning Finder currently covers 20 U.S. states with comprehensive data on ADU laws, Appendix Q adoption, THOW restrictions, and county-specific building codes. We're continuously expanding coverage and updating regulations as they change.
Can I use the mortgage calculator for a tiny house on wheels?
The mortgage calculator works best for foundation-based tiny houses and park models. Tiny houses on wheels (THOWs) are typically financed through RV loans or personal loans rather than traditional mortgages. Contact lenders who specialize in alternative housing for THOW financing options.
How do I know if my tiny house will be too heavy for my trailer?
Use our Weight Calculator to estimate your tiny house total weight based on construction materials and dimensions. Compare this to your trailer's GVWR (Gross Vehicle Weight Rating) and ensure your towing vehicle can handle the load. Always leave a safety margin and consult with a professional builder for final verification.
What's included in the off-grid solar calculator estimates?
The Off-Grid Solar Calculator estimates solar panel wattage, battery bank capacity, inverter requirements, and charge controller sizing based on your daily energy consumption and location. It factors in seasonal variations and provides recommendations for system components to meet your power needs year-round.
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