The thermometer shown in the picture gives readings in both degree Celsius and Fahrenheit. The same temperature can be measured using either one of them. Countries that use the metric system, including Canada, use the Celsius scale; in the US we use degree Fahrenheit. This thermometer was bought at the border.
Celsius scale:
water freezes at 0° and boils at 100°.
Fahrenheit scale:
water freezes at 32° and boils at 212°.
- 40 °F = - 40 °C
You can convert degree Fahrenheit to Celsius and Celsius to Fahrenheit. Here are the formulas:
°C = (°F - 32) * 5/9°F = °C * 9/5 + 32
