Type formulas that calculate live, including real-world units, right next to freehand sketches and images on an infinite, multiplayer canvas. Mathcad meets a whiteboard.
Real worksheets
Each card is a worksheet exactly as you'd type it — define a variable in one cell, use it in the next. Values carry units; Calcanvas converts, cancels, and checks dimensions.
Why Calcanvas
Full dimensional analysis on every cell: 5 km + 300 m just works, grams and km/h convert on demand, and mismatched units throw a clear error instead of a wrong number.
Pan and zoom forever. Drop formula cells, freehand sketches, shapes, and images anywhere — group your thinking spatially, not trapped in a grid.
Open the same project together: live presence cursors and instant updates, synced cell-by-cell. A shared whiteboard for the math behind your work.
How it works
Add a math cell anywhere on the canvas and write math the way you think it — numbers and units together: P = 2500 N.
Every cell evaluates as you type. Variables defined in one cell are in scope for the next, and units convert and cancel along the way.
Annotate with freehand drawings, shapes, and images on the same infinite canvas — and see collaborators' cursors live.
Free while in early access, no credit card. Open a canvas and watch your math add up — in the right units.