30.4 cm to Inches on a Ruler
30.4 centimeters is equal to 12.0 inches on a ruler.
The place marked in red shows 12.0 inches, which is equal to 30.4 centimeters on the ruler.
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30.9 cm to inches on a ruler
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29.9 cm to inches on a ruler
Convert 29.9 centimeters to inches and see it on a ruler.