Maler Kostenrechner
Was kostet das Streichen eines Zimmers? Berechnen Sie die genauen Materialkosten für Wandfarbe sowie optionale Maler-Stundenlöhne oder Quadratmeterpreise.
Projektmaße
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Schritt-für-Schritt Beispielrechnung
Beispiel: Estimating material and professional labor cost for a 14 ft × 12 ft primary bedroom with 8 ft ceilings, 1 entry door, 2 windows, 2 coats of premium paint at $45/gal, and $1.75/sq ft professional painter labor rate.
Calculate Perimeter: 2 × (14 + 12) = 52 linear feet.
Calculate Gross Wall Area: 52 ft × 8 ft = 416 sq ft.
Subtract Openings: 416 - (1 door × 20 sq ft + 2 windows × 15 sq ft) = 416 - 50 = 366 sq ft.
Factor 2 Coats: 366 sq ft × 2 = 732 sq ft total paintable coverage.
Compute Gallons with 10% Buffer: (732 / 350) × 1.10 = 2.09 × 1.10 = 2.30 gallons -> Purchase 3 full 1-gallon cans.
Calculate Material Cost: 3 cans × $45.00 = $135.00.
Calculate Labor Cost: 366 sq ft net wall area × $1.75/sq ft = $640.50.
Calculate Total Project Cost: $135.00 + $640.50 = $775.50.
Paint Cost & Budgeting Formula
Total Cost = (Full Cans × Paint Price) + (Net Paintable Area × Labor Rate) Gross wall area is computed from perimeter multiplied by ceiling height. Standard deductions are subtracted for doors (20 sq ft / 1.86 m²) and windows (15 sq ft / 1.39 m²). The net paint area is multiplied by coats and divided by the coverage rate. Adding a waste buffer (default 10%) determines total paint volume, which rounds up to whole retail cans. Total cost combines material purchase price with optional professional square-foot labor fees.
Formelvariablen
Berechnungsgrundlagen
- Standard residential interior door deductions are 20 sq ft (1.86 m²) per door.
- Standard residential interior window deductions are 15 sq ft (1.39 m²) per window.
- Standard interior latex paint provides 350 to 400 sq ft (8.6 to 9.8 m²) of single-coat coverage per gallon.
- Professional interior painting labor averages $1.50 to $3.50 per square foot of wall area based on PCA benchmarks.
- A 10% safety buffer is included to account for roller nap retention, cutting waste, and leftover touch-up reserve.
Häufig Gestellte Fragen
Typische Fragen von Heimwerkern und RenovierernMaler Kostenrechner
How much does it cost to paint a 10x12 or 12x14 bedroom?
For DIY painting, a 10x12 or 12x14 room typically costs between $60 and $150 for 2 to 3 gallons of quality paint and basic supplies (tape, roller covers, drop cloths). Hiring a professional painter usually costs between $400 and $900 including labor, wall prep, and materials.
How much do professional painters charge per square foot?
Professional interior painters typically charge between $1.50 and $3.50 per square foot of wall surface area. High ceilings, extensive drywall repair, trim/crown molding, and dark-to-light color transitions will push rates toward the higher end of the range.
How much paint does a standard room require?
A standard 10x12 or 12x14 bedroom with 8-foot ceilings has approximately 350 to 420 square feet of net wall area. Applying 2 full coats requires between 2 and 3 gallons of interior paint.
What is the difference in cost between budget and premium paint?
Budget paint ranges from $20 to $30 per gallon, standard mid-grade paint costs $35 to $50, and premium zero-VOC washable paint (such as Sherwin-Williams Emerald or Benjamin Moore Regal Select) costs $65 to $90+ per gallon. Premium paints cover better, clean easier, and often eliminate the need for an extra coat.
Do I need primer, and how does it affect total cost?
Primer is recommended when painting bare drywall, covering water/smoke stains, transitioning from oil to latex, or making drastic color shifts (e.g., navy to off-white). A gallon of dedicated PVA or stain-blocking primer costs $20 to $35 and reduces the amount of expensive topcoat paint required.
Why should I include a 10% waste buffer in my paint budget?
Paint rollers and brushes absorb a significant volume of liquid during application. A 10% buffer prevents running out of paint on the final wall section and ensures you have identical-batch leftover paint for future scuff and scratch touch-ups.
How can I lower the cost of hiring a professional painter?
You can save 15% to 30% on labor costs by handling preparation yourself: moving furniture to the room center, removing switch plates and outlet covers, wiping down dirty baseboards, and patching small nail holes before the painters arrive.
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