Architecture & Construction conversions
Fast, professional unit conversions for drawings, schedules, specifications, and on-site coordination.
Use these tools to translate between metric and imperial units while keeping your workflow consistent across drawings, BOQs, and consultant coordination.
Switch units quickly when moving between plans, field measurements, and client requirements.
Convert m²/ft² and m³/ft³ for floor areas, quantities, and material checks.
Fast calculators that run entirely in your browser (no logins, no external APIs).
Calculators & advanced tools
Practical calculators for drawings and site work.
Convert real-world dimensions to a scaled drawing length (and back) using common architectural scales.
Calculate concrete volume for a slab (length × width × depth).
Convert between concrete volume and mass using a selectable or manual density.
Calculate rectangle floor area (length × width).
Convert between percent grade, degrees, and 1:run slope ratio.
Check the unit system used in the spec set (metric vs imperial) and be consistent with rounding when you share results with consultants and contractors.
Primary converters
High-use architecture conversions, organized for quick access.
Common on construction drawings and product datasheets—use this to convert metric details (mm) to imperial inches for on-site or client coordination.
Handy when translating imperial dimensions into metric for CAD/BIM models, schedules, and specifying products in millimeters.
Use for architectural set-out, elevations, and room dimensions when switching between metric (m) and imperial (ft).
Convert imperial site measurements (ft) into meters for drawings, specifications, and coordination with metric-based consultants.
Useful for floor area reporting, leasing schedules, and project documentation that requires ft² while your model outputs m².
Convert area figures from ft² into m² for metric drawings, area takeoffs, and international project documentation.
Use for material quantities and volume checks (e.g., concrete, excavation, HVAC volumes) when you need ft³ outputs.
Convert ft³ volumes into m³ for metric BOQs, civil quantities, and coordination with metric specifications.
Helpful for translating material weights and product specs (kg) into pounds (lb) for imperial documentation.
Convert imperial weights (lb) into kilograms (kg) when preparing metric schedules, procurement, or international specs.