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13 hours ago1 cm is about the width of the tip of your pinky finger.
1 m is about the distance from your nose to your fingertips if you hold your arm out, and extend your fingers.
100 m is the length of the straight section of an athletic track, which is about the same length as a football field.
1 mL is about the volume of the tip of your pinky finger.
1 L is about 1 quart, which is half a carton of milk (unless you get milk in the smaller 1 quart size).
The m-to-km conversion is pretty close to 1½.
The kg-to-lb conversion is two-and-a-bit.
A difference of 1°C is close to a difference of 2°F.
Edit: My milk comparison was wrong - I’ve corrected it.
I raised my kids using metric temperature for weather. Now that they’re older they hold me to it!