Project Time Calculator

Work out any craft project in hours, sessions and weeks from your own measured working rate.

Work to do units

The whole project in one unit: square centimetres, rows, stitches, beads, pots, metres.

Your working rate units per hour

Measure it: time a full hour of ordinary work on this project and divide the output by the time.

Efficiency factor times

One for a plain repeat, 0.6 to 0.8 for colour changes, shaping or a first attempt at the technique.

Finishing allowance %

Blocking, pressing, seaming, mounting, framing, sanding. Ten to twenty five percent is usual.

Hours in one session h

The length you actually keep up, not the length you would like to.

Sessions per week sessions

How many sittings you realistically get in a normal week.

How many projects

For a batch or a set, such as six of the same item.

Weeks available weeks

Optional. Leave at zero and the tool simply reports how much time you do not have.

Reset

Free calculator by Handcraft worked examples and methodology No account, nothing stored.