Contact

One address, read by a person: hello@opscrunch.com.

Worth writing about

• Corrections. If a formula, worked example, or reference value looks wrong, say which page and what you expected. Getting the numbers right is the whole product.
• Sourcing.Questions about where a formula or table value comes from — every page cites its grounding, and we'll show the working.
• Bugs. Broken input, wrong rounding, layout mishap — include your browser and the inputs that triggered it.
• Requests.A calculator you need that isn't on the bench yet.
• Privacy. Anything under the privacy policy.

OpsCrunch is a small operation, so replies can take a few days — but corrections jump the queue.