Built for 🇺🇸 United States·USD
Business and personal maths, solved in seconds.
Free calculators for business and personal finances across the US and Canada. Margin, payroll, GST/HST, state sales tax and mortgages — with the right rates for the country you actually operate in.
Currency converter
Loading1 USD = 1.3952 CAD
🇺🇸 US Dollar → 🇨🇦 Canadian Dollar
Saved rates · 8 Aug 2026
Browse by category
22 calculators, each on its own page with the formula, a worked breakdown and answers to the questions people actually ask.
Guides to your next calculation
Work through the rules and examples, then use a free calculator with your own numbers.
Canada mortgage stress test: qualifying rate and examples
Understand the 5.25% floor, contract rate plus 2 percentage points, worked payment examples and the uninsured straight-switch exception.
Read the guide →Break-even point formula: units, sales revenue and examples
Calculate break-even in units and sales dollars. See a worked example, whole-unit rounding and common cost mistakes, then try the free calculator.
Read the guide →Sales tax nexus: physical presence, economic nexus and next steps
Learn physical versus economic sales tax nexus, why state thresholds differ, and how to check marketplace sales. Includes an official Texas example.
Read the guide →Live results
Every figure recalculates as you type. No submit button, no waiting, no account.
Two countries, one site
The header toggle sets currency, terminology and default tax rates everywhere you go.
Rates in one place
All federal, state and provincial rates live in a single config file that is reviewed when rates change.
Advertisement