Mechanical Engineering
Mechanical engineering tools for building systems. Size ductwork, calculate cooling loads, determine ventilation rates, and analyze piping systems for efficient MEP design.
Tools
Available calculators
Projects
Manage projects, track stages, and organize work
Duct Sizing
HVAC duct dimensions for airflow
Cooling Load
HVAC tonnage and CFM
Ventilation Rates
ASHRAE 62.1 outdoor air
Pipe Sizing
Flow rate and pressure drop
Pump Head
Total dynamic head calculation
Water Demand
Fixture units and GPM demand
Time Tracking
Track project hours with stopwatch and manual entries
Window Types
Compare operation, ventilation, and performance
AutoCAD Scale Calculator
Architectural scale conversions and viewport calculations
Amphitheatre Acoustics
Sound propagation, RT60, and acoustic zone analysis
Invoice Creator
Create and export professional invoices
Task Management
Organize and track project tasks
Dimensions.com Search
Search dimensions for furniture, objects, and more
UpCodes Search
Search building codes and regulations
Snip Tool
Capture, annotate, and share screenshots
Clipboard History
Search, pin, and reuse copied content
Daily Affirmations for Architects
Daily motivational affirmations with shareable social media images
DXF Viewer
View and inspect DXF CAD files locally
PDF Comparison
Compare two drawing sets to find added, removed, and modified sheets
PDF QA/QC
Check one PDF set for internal consistency issues across sheets
Cartoon Set Generator
Create and manage early-phase drawing set outlines
Sheet Index Generator
Extract sheet data from PDF drawing sets
Instant results
Get calculations in milliseconds. No waiting, no loading screens.
Industry standard
Built on established formulas and code requirements you can trust.
Always free
No sign-up required. No credit card. No hidden costs.
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