Free renovation calculators
Know your renovation costs before you start.
Instant, transparent cost estimates for painting and flooring projects. Built on industry-standard formulas and real pricing data. No signup required.
Written by
RenoCost Editorial Team
Content planning, drafting, and usability editing
Reviewed by
RenoCost Methodology Review Team
Formula, assumptions, and quote-comparison review
Last reviewed
February 22, 2026
Editorial overview page
Review process: editorial policy · methodology · report an issue
Painting Calculators
Calculate paint costs, material quantities, and labor for any room size. Covers interior walls, ceilings, exteriors, and trim.
480 calculatorsFlooring Calculators
Estimate costs for vinyl, laminate, hardwood, and tile flooring installation. Includes material quantities and labor.
308 calculatorsPopular Calculators
Most used estimates by homeowners.
Why RenoCost?
Trusted by homeowners planning their next renovation.
Instant Estimates
Get accurate cost ranges in seconds. No signup, no waiting for quotes. Just enter your room dimensions and get results immediately.
Transparent Formulas
We show our work. See exactly how every estimate is calculated, from wall area formulas to paint coverage rates and regional cost adjustments.
Save & Share
Download estimates as CSV or share custom calculations via link. Compare different options side by side to find the best fit for your budget.
Home Renovation Cost Guide
Planning Your Renovation Budget
The key to a successful renovation is knowing your costs upfront. Start by measuring your rooms and using our calculators to estimate material and labor costs. Always add a 10-15% contingency fund for unexpected issues like hidden water damage, electrical updates, or structural repairs.
For most homeowners, painting and flooring deliver the highest visual impact per dollar spent. A fresh coat of paint transforms a room for $100-750, while new flooring can completely change the feel of a space for $3-15 per square foot.
DIY vs. Hiring a Professional
DIY saves 30-60% on labor costs but requires your time and carries the risk of mistakes. Painting is the most DIY-friendly renovation—even beginners can achieve professional results with proper prep. Vinyl plank and laminate flooring are also excellent DIY projects with click-lock installation systems.
Leave hardwood flooring installation and tile work to professionals unless you have experience. The specialized tools and skills required mean mistakes are expensive to fix, often exceeding the cost of professional installation.
Average Renovation Costs at a Glance
| Project | DIY Cost | Professional Cost |
|---|---|---|
| Paint a 12x12 Room | $80 - $200 | $250 - $500 |
| Paint a 20x20 Room | $150 - $400 | $400 - $1,000 |
| Vinyl Flooring (500 sq ft) | $1,000 - $3,500 | $1,500 - $5,000 |
| Laminate Flooring (500 sq ft) | $500 - $2,500 | $1,500 - $4,500 |
| Hardwood Flooring (500 sq ft) | $2,000 - $6,000 | $4,000 - $10,000 |
| Tile Flooring (500 sq ft) | $500 - $7,500 | $3,000 - $12,500 |
Costs reflect national averages. Your actual costs depend on room size, material quality, geographic region, and project complexity. Use our calculators for precise estimates tailored to your specific project.
Use RenoCost to Compare Quotes (Not Just Get a Number)
The fastest way to lose money on a renovation is comparing totals without comparing scope. RenoCost is built to help you ask better questions before signing a contract.
- Start with a calculator estimate to set a realistic budget range.
- Request line-item quotes (prep, materials, labor, disposal, cleanup, add-ons).
- Compare exclusions and assumptions first—these usually explain price gaps.
- Keep a contingency for hidden conditions rather than forcing the estimate to match a target budget.
Quality signals on this site
- Documented methodology and assumptions for core calculators
- Versioned model updates on methodology and hub pages
- Structured knowledge files for LLM follow-up questions
- Noindex on low-value parameter combinations to reduce search clutter
- User-facing checklists for validating real contractor quotes
Planning Guides
Higher-value guides for quote comparisons and budgeting decisions.
Compare Contractor Quotes (Scope First)
Learn how to normalize quotes, compare exclusions, and avoid choosing a low bid that turns into expensive change orders.
Renovation Budget Planning Guide
Build a working budget with contingencies, phases, and option ranges before you request final contractor bids.
Quote Breakdown Examples
Anonymized painting and flooring quote examples that show how exclusions and allowances change the real price.