Precision engineering
in your pocket.
The ultimate command center for site engineers. Over 400 calculators, custom formulas, and enterprise-grade estimation engines.
If you build it, we calculate it.
The tactile speed of your favorite Casio, supercharged for the modern smartphone.
The Heavy Engines.
Complex site math reduced to three inputs. Eliminate material waste and enforce strict precision.
Quantity Engine
Instantly calculate precise brick, cement, and steel requirements for any structural element down to the exact bag and bar.
- Brick & Block Masonry
- Steel Reinforcement Weights
- Plastering & Painting
Volume Engine
Execute exact cubic estimations for concrete pours, complex excavations, and specialized footing parameters.
Don't see it?
Build it.
The ultimate power-user feature. Define your own variables, input specific local material rates, and save unique structural math as your own personal calculator.
Your Site Command Center.
Griham isn't just a calculator. It is a complete project management ecosystem.
Never lose an estimate.
All calculations are instantly saved to the secure Griham cloud. Organize your math by specific projects, sites, and clients.
From site to office in seconds.
Generate professional PDF reports instantly. One-tap sharing to WhatsApp or Email to keep contractors and clients in the loop.
Built for the field.
Enterprise-grade UI designed specifically for extreme site conditions.
OLED Dark Mode
Saves phone battery during long shifts on site. High-contrast UI reduces harsh screen glare under direct sunlight.
Field-Ready Offline
No signal? No problem. The core calculation engines run flawlessly underground, in basements, or completely off-grid.