Free Contractor & Estimating Tools
Roofing Calculator Online Tool
Free roofing calculator. Calculate roofing squares (100 sq ft), 3-tab and architectural shingle bundles, and underlayment rolls with pitch factors.
Direct Calculator Preview
Roofing 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
🏠 Roofing Shingle & Square Calculator
Calculate roofing squares (100 sq ft), bundles, and underlayment rolls with pitch adjustment.
Actual Roof Area1,344 sq ft
Roofing Squares14.8 Squares
Shingle Bundles (3/Sq)45 Bundles
Underlayment Rolls (400 sq ft)4 Rolls
Want an exact itemized roof takeoff with ridge caps, valleys, and drip edge?Get 24h Roof Takeoff →
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.