Yoga pose hold timer

Plan a yoga flow and know exactly how long it will take. Load a ready-made sequence — sun salutation, morning energiser, bedtime relax, balance and core — or build your own from a library of twenty poses, set each hold, reorder them, add a get-ready countdown, transitions and rounds. It totals the session time and, with your weight, estimates the calories.

Preparing a race: the pace a target time needs, the splits to hold it, and the training zones that sit under it — on foot, and equally on a bike or in a pool, where the same session is measured in watts or in a hundred-metre split instead.

Scaling a time linearly to a longer distance. A marathon is not two half-marathons; race predictors use an exponent around 1.06 precisely because fatigue is not proportional.

Backpacking Food Weight Calculator, Bike Gear Ratio Calculator and Boxing punch power calculator share its section. They are not variants of it — being filed together is not the same as being alike — but that is where to look if this turned out not to be the tool you wanted.

Pace arithmetic is exact. Race predictions follow Riegel's formula, which assumes training matched to the longer distance — without it the prediction is optimistic.