About

Public operator name: Everyday Tools

Updated: 2026-10-01

Practical tools, explained

Everyday Tools brings together 14 free tools for everyday numbers and planning. Each tool has a method, a worked example and explicit limitations.

How results are produced

Calculations run locally in your browser. Displayed values are rounded; intermediate calculations retain their precision. Examples illustrate the method and are not personal recommendations.

Corrections

If a result looks wrong, check units and assumptions first. When reporting a problem, include the tool name, non-sensitive example inputs and the result you expected.