References

Everything explained in one place: short guides with a live calculator attached, a plain-language glossary, and the methodology behind every number this site produces.

Updated August 2026

Guides

Each one answers a single question and embeds the calculator, preset to the scenario being explained — so you can change the numbers to yours while you read.

Methodology

  • How we calculate every number — the formulas, the two places the US and Canada genuinely differ, where the data comes from, and what we do not model yet.
  • The rate feed — the current published averages this site uses, with their observation dates and sources.

Glossary

13 terms in plain language, for both markets. Read the full glossary or jump straight to one:

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