Basement Remodel Cost Calculator
Last updated: October 15, 2026
Estimate basement finishing and remodeling costs from area, cost per square foot, bathroom, egress, permits and contingency.
Starting figures illustrate this model. Enter your own measurements, quoted costs and applicable terms; this page does not retrieve live prices or provider rates.
Estimated basement remodel cost
—
- Base finishing cost: —
- Added features and permits: —
- Contingency: —
- Estimated cost per finished sq ft: —
On this page
Quick summary: Estimate basement finishing and remodeling costs from area, cost per square foot, bathroom, egress, permits and contingency.
Read the complete guide
Updated reference sections in this guide are in English.
What this calculator estimates
Estimate basement finishing and remodeling costs from area, cost per square foot, bathroom, egress, permits and contingency.
How to use it
Enter Basement area (sq ft); Base finish cost per sq ft ($); Bathroom addition ($); Egress windows and safety work ($); Permits and design ($); Contingency (%). Select Calculate to update the results.
How the calculation works
Base finishing cost equals area multiplied by the entered cost per square foot. Optional features, permits and a percentage contingency are then added.
Worked example: starting scenario
| Basement area (sq ft) | 1000 |
|---|---|
| Base finish cost per sq ft ($) | 55 |
| Bathroom addition ($) | 18000 |
| Egress windows and safety work ($) | 7000 |
| Permits and design ($) | 3500 |
| Contingency (%) | 12 |
| Estimated basement remodel cost | $93,520.00 |
|---|---|
| Base finishing cost | $55,000.00 |
| Added features and permits | $28,500.00 |
| Contingency | $10,020.00 |
| Estimated cost per finished sq ft | $93.52 |
Important limitations
Moisture mitigation, structural work, ceiling height, plumbing access, code requirements and local labor rates can materially change the project cost.