📏 Length Lab
Learn what inches and feet actually mean — not just conversion facts.
The rules worth remembering
These relationships work for every measurement problem.
12 in = 1 ft1 foot is 12 inches
3 ft = 1 yd1 yard is 3 feet
36 in = 1 yd3 groups of 12 inches
ft × 12 + inFind total inches
Choose a Measurement Skill
Question 1 of 10
Measure Smart
Choose an answer, then check it.
Measurement Tip:
12 inches make 1 foot.
12 inches make 1 foot.
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For parents: Length Lab practices inches, feet, yards, ruler reading, conversions, and estimation for students in grades 2–4. Real-world measurement problems help kids understand how length units relate.