Free Contractor & Estimating Tools
Paint Calculator Online Tool
Free paint calculator. Calculate exact gallons and litres of wall paint and primer with door and window deductions for interior & exterior projects.
Direct Calculator Preview
Paint Calculator & Material Estimator
Switch between any trade calculator below or bookmark this direct link for your project estimating.
🪨 Gravel Calculator 📦 Cubic Yard Calculator 🌱 Mulch Calculator 📐 Roof Pitch Calculator 🏠 Roofing Calculator 🪜 Stair Calculator 🪵 Board Foot Calculator 🎨 Paint Calculator 🔲 Drywall / Plasterboard ⬜ Tile Calculator 🧱 Brick & Mortar Calculator 🪵 Fence Calculator 🏖️ Sand Calculator 🛣️ Asphalt / Tarmac Calculator 🔨 Decking Calculator 🇬🇧 House Extension Cost
🎨 Paint & Primer Gallon Estimator
Calculate gallons (US) and litres (UK) of paint and primer required for interior and exterior walls.
Net Paintable Area468 sq ft
Paint Required (US)2.7 Gallons
Paint Required (UK)10.1 Litres
Primer Required1.3 Gallons
Need commercial painting & wall covering estimates?Painting Cost Estimation →
International Standards
US vs UK Construction Terminology Guide
We work seamlessly with both US CSI MasterFormat and UK/RICS NRM measurement standards.
| US Construction Term | UK / Commonwealth Term | Typical Measurement Unit | Relevant BOQ Service |
|---|---|---|---|
| Drywall / Sheetrock | Plasterboard | Sq Ft / m² | Drywall Takeoff |
| Asphalt Paving | Tarmac / Bitumen Macadam | US Tons / Metric Tonnes | Paving Takeoff |
| Cubic Yards (yd³) | Cubic Metres (m³) | Volume | Concrete Takeoff |
| Lumber / Framing | Timber | Board Feet / m³ | Framing Takeoff |
| Quantity Takeoff (QTO) | Bill of Quantities (BOQ) / QS Take-off | Itemized Bills | BOQ Preparation |
| Cost Estimator | Quantity Surveyor (QS) | Cost Planning | Cost Estimating |
Bid Delivery Estimator
Estimate Your Project Turnaround & Cost
⚡ Instant Estimating Estimator
Estimate Your Turnaround & Project Scope
Select your project details to get estimated delivery times, CSI scope coverage, and claim your 25% first-time discount.
Small (<2k sq ft)Medium (25k sq ft)Large (100k+ sq ft)
⏱️ Estimated Turnaround:24–36 Hours
🎯 Accuracy Guarantee:Up to 98%
🎁 New Client Offer:25% OFF Applied
Claim 25% Off & Submit Plans → ✓ Free Review • No Obligation • 2-Hour Response
Q&A
Construction Calculators Q&A
Frequently asked questions about our construction estimation and calculation tools.