What is 1x3 inches in cm? 1x3 inches in cm is approximately 2.54 x 7.62 cm. Rounded to the nearest whole number, it's about 3 x 8 cm.
1 × 3 in = 2.54 × 7.62 cm
If calculating the area:
1 in x 3 in = 3 Square Inches ≈ 19.355 cm²
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