Master Your Health: Understanding BMI
Body Mass Index (BMI) is a simple but powerful tool for assessing your health. Learn what your numbers mean and how to calculate them.
Feb 11, 2026
Example: Enter 50000 for 1:50k map
Real World Distance
5.0 km
Meters
5000 m
Miles
3.1 mi
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View detailed breakdowns and explanations below.
Scales are unitless. A 1:100 scale means 1 anything on paper equals 100 anythings in real life.
1 inch = 100 inches.
1 lego brick = 100 lego bricks.
Map Scale: 1:25,000.
Measured: 4 cm on map.
Real: 4 cm × 25,000 = 100,000 cm.
Result: 100,000 cm = 1,000 meters = 1 km.
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