Tools that give you the actual number

Single-purpose calculators and reference lookups for work where the answer matters to a degree or a decimal. Each one loads straight into the tool, works offline once cached, and asks for nothing.

Ceramics

Kiln firing, cones and glaze temperatures.

Cone CheckConvert any Orton pyrometric cone from 022 to 14 into a firing temperature, corrected for cone form, heating rate and hold time.

What these are

A lot of technical reference still lives in a PDF, a scanned chart or a forum screenshot. That is fine until you need one value from it, on a phone, next to a machine that is already running.

So each tool here answers exactly one question. It does the arithmetic the published chart expects, shows the formula, and says plainly where the answer stops being reliable. There is no account, no paywall and no upsell, and the reference table stays readable with JavaScript turned off.

More are being added. If one of these gets a number wrong, or misses a case you actually hit, tell me and it gets fixed.