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Engineering Tools

Bhitti Bhai
Tool Suite

Professional civil engineering calculators and estimators — built for Bangladesh, compliant with BNBC 2020. Free to use.

Available Now & Coming Soon

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Civil Cost Estimator
Full building cost estimation with BOQ, material quantities, and labor rates — BNBC 2020 compliant.
  • Foundation, column, beam, slab
  • Bar Bending Schedule (BBS)
  • PDF export with project details
  • PWD Schedule of Rates
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🧱 Coming Soon
Concrete Mix Design
ACI & BNBC mix design calculator for M15 to M40 grade concrete with water-cement ratio optimization.
  • ACI 211.1 method
  • Aggregate grading analysis
  • Trial mix output
Coming Soon
📐 Coming Soon
Beam & Column Designer
RCC beam and column design with moment, shear, and reinforcement calculations per BNBC 2020.
  • Simply supported & continuous beams
  • Axially loaded columns
  • Rebar layout output
Coming Soon
📊 Coming Soon
Bar Bending Schedule
Standalone BBS generator — input member dimensions and get full cutting lengths, weight, and summary.
  • All standard bar shapes
  • Auto weight calculation
  • Excel + PDF export
Coming Soon
🏗️ Coming Soon
Pile Design Calculator
End bearing and friction pile capacity calculator per BNBC Part 7 Chapter 2.
  • Single & group pile capacity
  • Settlement check
  • Soil profile input
Coming Soon
More Tools On The Way

We're building a full engineering tool suite for Bangladesh. Subscribe to get notified when new tools go live.

Stair Designer Load Calculator Footing Design Retaining Wall Water Tank Design Slab Thickness Wind Load (BNBC) Seismic Analysis