Roast Reckoner
Reckonersweight 1reckoner · computes, doesn't store
The bird is bought, the guests are invited, and the only remaining question is the one that ruins holidays: how long, at what heat, starting when? The Roast Reckoner computes roasting times from the weight of the joint, so the maths is settled before the oven door closes. It reckons and remembers nothing — you carry the triumph alone.
This is not a screenshot. It's the real tool, running right here — go on, put something in it.
Open the demo full-screen: /demos/roast-reckoner.html
Questions people ask
How do I work out cooking time for a roast by weight?
Give it the weight and what you are roasting, and it computes the time. From there you can count backwards from when you want to sit down, which is the calculation that actually matters.
Will it work on Christmas morning if the internet goes down?
Yes, and this is not hypothetical for everyone. It is a single HTML file running offline in your browser — it computes on the spot, stores nothing, and needs no connection whatsoever. The turkey waits for no router.
Does the Roast Reckoner replace a meat thermometer?
No — it gives you the timing arithmetic, and the thermometer gives you the truth. Use the reckoner to plan and the thermometer to confirm; that combination has saved more dinners than either alone.
Fits your knife at weight 1. Nothing here is final — Knife follows Life. Reforging within your tier is free, forever. Add it, drop it, reforge later; the file stays yours either way.