150+
Countries
Your inputs. Our math. Zero assumptions. ConstrCalc® is the professional platform for construction calculation, project planning, measurement conversion, and construction knowledge — used across 150+ countries.
After every calculation ConstrCalc® generates a rich post-computation Intelligence Panel — cost per unit, per floor, monthly / weekly / daily distribution, mix percentages, measurement conversions, and formula transparency. All from your numbers. Zero assumptions.
Materials · Labor · Equipment · Legal · Overhead · Profit · Taxes · Grand Total — all your values, all math.
Per ft², per m², per yd², per floor. Deterministic conversions applied to your entered rates.
Straight-line cost distribution across months, weeks, days from your entered duration.
Percentage split across categories — visible bar breakdown, clear legend.
Your entered area in ft², m², yd² and across floors. Constants only, no rate change.
Every equation printed inline. See the math, verify the math, trust the math.
Contextual links to glossary, methodology, and guides — right where you compute.
PDF · Excel · Word · CSV · JSON · Print. Client-ready in one click.
Each tab is a discrete stage in your estimation pipeline. Enter your values. See the math. Export the result.
Name, type, area, floors, duration, location multiplier, overhead %, profit %.
Permits, architect & engineer fees, surveys, insurance — by project type.
Standard quantities for cement, sand, steel, bricks, aggregate, paint — auto-calculated per your area. Or enter manually.
General & skilled labor with hourly or daily units. Total hours & daily equivalents computed.
Heavy machinery & small tools rental — unlimited entries, itemized by category.
Subtotal, overhead, profit, grand total, cost per ft²/m². Export in PDF · Excel · Word · JSON.
Open the full six-tab calculator in a new page. Your inputs auto-save to your browser.
USD · EUR · GBP · INR · CNY · JPY · AED · NGN · and 30+ more. Live symbol updates.
English, Español, Français, Deutsch, 中文, हिन्दी, العربية, and more. Full localization for tab labels.
PDF for clients. Excel for accounting. Word for RFPs. JSON to resume editing later.
Every calculation uses only the numbers you enter. No hidden multipliers. No fake math.
Fully responsive. Tabs collapse cleanly on phones. Enter on-site from your device.
Auto-save to browser. Upload previous JSON to continue editing. Store unlimited reports.
What used to take spreadsheets and two coffees now takes 15 minutes. Six tabs, structured input, instant totals.
Standard material quantities per 1000 ft² prevent forgetting bricks, cement, or paint. Manual overrides where you know better.
Every line item exportable. Show your client the exact math — not just a total. Build trust and win more work.
Works on any device with a browser. No install, no login, no lock-in.
Home builders, remodelers, custom homes, ADUs. Permit, materials, labor — all pre-configured for residential.
Office, retail, hospitality. Commercial-grade permits, ADA compliance, MEP engineering fees included.
Warehouses, factories, logistics hubs. OSHA, hazmat, environmental permits pre-listed.
Additions, retrofits, historic restoration. Structural assessments and asbestos inspections tracked.
Cost feasibility for early design. Present scenarios with different multipliers side-by-side.
Faster bids. Better margins. Fewer omissions on the day of quote.
Cement, sand, steel, bricks, aggregate, paint — the standard quantities and how to adjust them.
When to switch between units. How to compute equivalent daily rates. Multi-worker breakdowns.
Residential, commercial, industrial, renovation — what to file, how much it typically costs, in what order.
No black-box multipliers. Every calculation ConstrCalc performs is published, documented, and inspectable in our Calculator Methodology.
| Category | Formula | Units |
|---|---|---|
| Cement Required | Area × 0.4 | Bags per ft² |
| Sand Required | Area × 0.0816 | Ton per ft² |
| Steel Required | Area × 4.0 | Kg per ft² |
| Bricks Required | Area × 8.0 | Pcs per ft² |
| Aggregate Required | Area × 1.35 | ft³ per ft² |
| Paint Required | Area × 0.0025 | Gallons per ft² (2 coats) |
| Labor Cost | Workers × Hours × Rate | Currency |
| Overhead Amount | Subtotal × (Overhead % / 100) | Currency |
| Profit Amount | (Subtotal + Overhead) × (Profit % / 100) | Currency |
| Grand Total | Subtotal + Overhead + Profit | Currency |
Convert ft²↔m², understand cubic feet for aggregate, gallons for paint, bags for cement. Everything you need to enter values with confidence.
Read Measurement GuideTypical unit costs for cement, steel, labor, permits — regional multipliers explained. Reference data to validate your inputs.
Read Cost GuideHomes, ADUs, custom builds.
Office, retail, hospitality.
Warehouses, factories.
Retrofits, additions.
Cement, sand, steel, bricks.
Hourly & daily rates.
Heavy machines & tools.
Legal & professional fees.
The line items estimators forget — from soil tests to hazmat inspections — and how to catch them every time.
The difference between them, why they compound, and how to set percentages that keep you profitable.
Presenting to a client? Reconciling with accounting? Feeding a bid platform? Each export has a purpose.
Cut our bid prep from a day to under an hour. The tab structure matches how we actually estimate. And the PDF export goes straight to the client — no cleanup.
I show clients the formula transparency page and they stop questioning the numbers. That single feature is worth the switch from spreadsheets.
Multi-currency + 27 languages means my international clients get the exact estimate in their own terms. Nothing else on the market does this for free.
Glossary, cost guides, material guides, measurement guides, planning guides, methodologies, and country-specific practices — all inside the platform.
Open the calculator. Enter your numbers. Export your estimate. All in your browser.