Total Square Footage Calculator
Sum multiple area measurements into a single total. Add as many segments as needed - rooms, floors, separate buildings, or different shapes.
Total Area Calculator
When you need a total
Material orders for a whole home (carpet for every room, paint for every wall) need a single total. Property valuations need the sum of all heated finished space. Real estate listings need the total under-roof living area.
Always keep the individual numbers - if there's a measurement question later, you can recheck the specific room without re-measuring everything.
Combining different shapes
The multi-segment calculator handles different shapes per segment. You can have 5 rectangular rooms + 1 circular gazebo + 1 triangular bay - the total adds them all together correctly.
For mixed projects (like flooring + paint together), keep separate totals for each project type. Floor area and wall area aren't interchangeable, even though they're both "square footage".
Pro tips
Save your sketches
A photo of your hand-drawn floor plan with measurements is invaluable for future projects. Don't throw it away after one job.
Sum types, not totals
Don't add floor area to wall area into a single "total". They're different surfaces and different material types. Keep separate totals.
Print the result
Use the Print button on the multi-shape calculator to print your full segment list and totals. Useful for bid comparisons and material orders.
Round at the end
Don't round each segment to whole sq ft - you accumulate error. Carry one decimal place per segment, then round the final total.