Garage Conversion Cost Calculator
Get an instant estimate for your garage conversion. Adjust size, conversion type, materials, and region to see a personalized cost breakdown.
Garage Conversion Cost Calculator
Estimate the cost of converting your garage into a bedroom, ADU, office, living room, or gym.
Estimate Breakdown:
Base: $32,000 | Range: $22,400 – $44,800
*Permits, architectural fees, and utility connections not included. Final cost depends on specific site conditions.
Estimated Cost Range
Average: $32,000
Adjust inputs above for a personalized estimate
Cost Range Comparison
Cost Breakdown
We'll email you a link to your saved estimate (demo: saves to your browser)
How to Use This Calculator
- Enter your garage size in square feet.
- Select your conversion type (bedroom, living room, office, ADU, gym).
- Choose your material quality tier.
- Select your region for localized labor costs.
- Add optional bathroom and/or kitchen if needed.
- Review your personalized low/average/high estimate.
Frequently Asked Questions
How accurate is this garage conversion calculator?
Our calculator provides estimates based on national averages. Actual costs may vary by 25–35% depending on your contractor, site conditions, and local permitting costs.
Does the estimate include permits and fees?
No. Our estimate covers construction costs only. Permits, architectural fees, and utility connections are not included and can add $5,000–$20,000 depending on your location.
Can I convert my garage into an ADU with this calculator?
Yes. Select "ADU / Apartment" as the conversion type and enable the bathroom and kitchen options for a comprehensive estimate. ADU conversions are more complex and expensive than basic bedroom conversions.
Will I lose my parking spot?
Yes, converting your garage removes parking unless you build a separate carport or driveway. Some municipalities require parking replacement as part of the permit.