BuiltIQ • Arwin Group

Intelligence for the
Built Environment

Free construction calculators, BIM guides, and expert-led tools — built to help architects, engineers, and developers make smarter building decisions.

100% free toolsNo signup neededExpert-curated contentIndia-focused standards
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Free Tools

Construction & Design Calculators

Practical, accurate, no-signup-needed tools for architects, engineers, and builders in India.

Room Acoustics Calculator

Calculate RT60 reverberation time for any room using the Sabine equation. Optimize acoustic comfort for offices, studios, and auditoriums.

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Material Estimator

Estimate concrete, steel, bricks, cement, and sand quantities for your construction project with Indian thumb rules.

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Carpet Area Calculator

Convert between Super Built-up, Built-up, and Carpet Area. Know what you actually get when buying property in India.

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Embodied Carbon Calculator

Estimate the carbon footprint of your building materials and discover how much nature needs to offset it.

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Knowledge Base

Topics We Cover

Expert-curated content on BIM, acoustics, sustainability, and the future of construction.

BIM & Digital Twin Technology

Acoustic Design Principles

Sustainable Construction

Construction Project Management

AR/VR in Architecture

Indian Building Codes & Standards

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Free tools. Expert guidance. No signup required.

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