Construction Intelligence Center

A Contractor's Guide to Retention Money and Cash Flow

Retention money protects the client but locks up contractor capital for months.

Construction Finance Cost Calculator — Project Loan Interest & Delay Cost

Calculate planned vs. actual construction finance interest cost, and the additional financing cost a construction delay adds — for real estate developers and other project owners financing construction.

Construction Project Cash Flow Calculator

Project your cash flow across billing, retention and payment cycles.

Hidden Profit Loss Calculator — Where Contractors Lose Margin

A single calculator estimating total hidden profit leakage across material, labour, equipment and billing.

How Indian Contractors Lose Profit Without Noticing

Most construction businesses in India lose 5-12% of turnover to leaks spread across material, labour, equipment and cash flow.

MSME Delayed Payment Interest Calculator

Calculate interest owed under the MSME Act for delayed client payments.

Project Profit Calculator for Contractors

Calculate real project profit after hidden cost leakage.

Rebota vs Excel + WhatsApp

An honest comparison of managing construction projects with Excel and WhatsApp versus Rebota.

Rebota vs Tally for Construction Businesses

Tally handles accounting well. Here is what it was never built to do for construction site and project management.

Rebota vs Traditional Construction ERP

How Rebota compares to heavyweight enterprise construction ERP systems for Indian SMB contractors.

Retention Money Calculator for Construction Contracts

Calculate retention money withheld and its cash flow impact.

Working Capital Calculator for Construction Contractors

Calculate working capital required per project size and cycle.

Construction Equipment Fuel Cost Calculator

Calculate fuel cost leakage across owned and hired machinery.

Equipment Cost Calculator — Owned vs Hired

Compare true owned vs hired equipment cost per project.

Equipment Depreciation Calculator for Contractors

Calculate depreciation on owned construction equipment the way Indian contractors actually use it.

Equipment Utilization Calculator

Find out how much idle equipment time is costing your project.

OEE Calculator — Overall Equipment Effectiveness for Manufacturing

Calculate OEE (Availability x Performance x Quality) for any production line or machine, per the ISO 22400 / SEMI E10 standard method, with root-cause diagnostics for each loss category.

Owned vs Hired: The Utilization Number That Should Decide It

Most contractors decide owned vs hired equipment once, at purchase, and never revisit it.

GST Calculator — Construction Works Contract & Material Supply

Calculate GST for construction works contracts (12%/18%), material supply, and services with CGST/SGST/IGST split.

GST Input Tax Credit (ITC) Calculator for Contractors

Calculate GST ITC you may be leaving unclaimed on construction purchases.

GST Late Payment Interest Calculator

Calculate interest liability on delayed GST payments.

TDS Calculator — Section 194C, 194J, 194I for Contractors

Calculate TDS on contractor payments (194C), professional fees (194J), and rent (194I) with PAN and threshold checks.

Why GST Input Tax Credit Gets Missed on Construction Sites

Eligible GST input tax credit on material and service purchases goes unclaimed more often than contractors realize.

Attendance Leakage Calculator — Ghost Wages Estimator

Estimate wages lost to attendance leakage and buddy punching on site.

EPF / ESIC Calculator — Employee & Employer Contribution

Calculate EPF (12%) and ESIC (employer 3.25% / employee 0.75%) contributions for construction workers and staff.

Labour Productivity Calculator for Construction Sites

Measure labour output against Indian construction productivity benchmarks.

Labour Productivity: The Metric Most Contractors Never Track

Attendance gets tracked closely. Output against planned quantity almost never does.

Overtime Cost Calculator for Construction Labour

Calculate true overtime cost across your workforce.

Cement Bag Calculator — Concrete, Plaster & Brickwork Mortar

Calculate exact cement bags needed for concrete, plastering, and brickwork mortar per IS 456:2000 and CPWD DSR consumption norms.

Cement Wastage Calculator — Find Your Hidden Material Loss

Calculate cement wastage on your site against Indian industry benchmarks and see the annual profit impact.

Concrete Volume Calculator — Cement, Sand, Aggregate Quantity (IS 10262)

Calculate concrete volume and exact cement, sand, aggregate, and water quantities for any grade (M10-M35) per IS 10262:2019 mix ratios.

Development Length Calculator — IS 456:2000 Clause 26.2.1

Calculate reinforcement development length (Ld) per IS 456:2000 for tension and compression bars, any diameter and grade.

Material Price Escalation Calculator

Track how material price movement is eating into your project margins.

Raw Material Yield Calculator — Good Output vs. Theoretical Standard

Calculate raw material yield (good output vs. theoretical output), scrap rate, and the material-cost impact of the yield gap — for manufacturing, process, and agri-processing operations.

Rework Cost Calculator for Construction Projects

Calculate the true cost of rework and quality rejection on site.

Steel Consumption Calculator for Construction Projects

Estimate steel consumption and wastage per BOQ against Indian benchmark rates.

Steel Weight Calculator — TMT Bar Weight per Meter (IS 1786)

Calculate TMT steel bar weight per IS 1786:2008 unit weight formula for any diameter 6mm to 32mm, with total weight, cost, and wastage.

The Real Cost of Material Wastage on Indian Construction Sites

Cement, steel and other bulk materials routinely run 2-4 points above Indian benchmark wastage.

How to Price a Construction Tender Without Guessing

A practical guide to setting tender margin — overhead recovery, risk contingency and target profit.

Tender Margin Calculator — Bid Pricing for Contractors

Calculate safe tender margins accounting for real execution risk.