MiniCalci

Calculators & Converters
Construction & DIY

Bathroom Renovation Cost Calculator

Estimate the cost of a bathroom remodel based on bathroom size and renovation scope, from cosmetic refresh to a full gut renovation.

What Does This Bathroom Renovation Cost Calculator Do?

This calculator gives you a ballpark estimate for a bathroom renovation. Select your bathroom size (small, medium, or large) and your renovation scope (cosmetic, mid-range, or full gut), and it returns an estimated total cost range along with a comparison across all scope levels for your bathroom size.

How the Estimate Is Calculated

Each renovation scope has a base cost range for a medium-size bathroom, which is then scaled by a size multiplier:

Total Cost = Base Scope Cost x Size Multiplier
  • Small (under 40 sq ft): 0.7x multiplier
  • Medium (40-100 sq ft): 1x multiplier (baseline)
  • Large (over 100 sq ft): 1.6x multiplier
  • Cosmetic: $3,000 - $7,000 base
  • Mid-Range: $7,000 - $15,000 base
  • Full Gut Renovation: $15,000 - $30,000 base

Worked Example: Large Bathroom, Mid-Range Scope

  • Base: $7,000 - $15,000
  • Large multiplier (1.6x): $7,000 x 1.6 = $11,200, $15,000 x 1.6 = $24,000
  • Estimated total: $11,200 - $24,000

Getting an Accurate Quote

This is a national-average estimate for early budgeting purposes. Actual bathroom renovation costs vary widely by region, materials, and whether plumbing needs to be relocated. Get quotes from multiple local licensed contractors before committing to a budget.

See also the home renovation cost calculator for whole-house remodeling budgets.

Frequently Asked Questions

How much does a bathroom renovation cost?
A bathroom renovation typically costs anywhere from about $2,000 for a small cosmetic refresh to $30,000+ for a large full-gut renovation, depending heavily on bathroom size and scope of work.
What's included in a 'cosmetic' bathroom renovation?
Cosmetic renovations typically include repainting, updating hardware and fixtures, re-caulking, and minor cosmetic upgrades without changing the layout or replacing major fixtures like the tub or vanity.
What's included in a 'full gut' bathroom renovation?
A full gut renovation typically involves removing everything down to the studs, updating plumbing and electrical, changing the layout, and installing all-new fixtures, tile, and finishes — the most expensive but most transformative option.
Why does bathroom size matter so much for cost?
Larger bathrooms need more materials (tile, flooring) and can require more fixtures (double vanities, larger showers), which scales up both material and labor costs even at the same scope level.
How much does a mid-range bathroom remodel typically cost?
A mid-range bathroom remodel — new tile, vanity, and tub/shower replacement without major layout changes — typically falls in the $7,000-$15,000 range for a standard-size bathroom, though this scales up for larger bathrooms.
What increases bathroom renovation costs the most?
Moving plumbing fixtures (which requires re-routing pipes), custom tile work, high-end fixtures, and structural changes to the room's footprint are typically the biggest cost drivers beyond the base scope.
Should I get multiple quotes before starting a bathroom renovation?
Yes, always get at least 3 quotes from licensed local contractors. This calculator provides a rough national-average planning estimate, but actual costs vary significantly by region, materials chosen, and contractor rates.

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How this is calculated: This tool uses standard, well-established formulas for construction & diy calculations. Results are estimates for informational and planning purposes — always double-check figures for anything with real-world consequences (e.g. ordering materials or submitting grades).