Convert 1 1/2 inches to millimeters
"Fractional Inches to Millimeters" Calculator
How many millimeters in 1 1/2 inches?
Answer
1 1/2″ = 38.1 mm
= 1.5″ · decimal inches
Exact: 1″ = 25.4 mm by definition (1959), and a ruler fraction converts without rounding. If the thread is marked G 1 1/2 (BSPP), its basic outside diameter is 47.803 mm (ISO 228-1): the inch size of a pipe thread is nominal.
1 1/2″ = 3/2″; 3 ÷ 2 = 1.5; 1.5 × 25.4 = 38.1 mm
Neighbouring sizes
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- Inches to Meters - Convert Inches to Meters
- Inches to Millimeters - Convert Inches to Millimeters
- Meters to Inches - Convert Meters to Inches
- Millimeters to Inches - Convert Millimeters to Inches
- Inches to Centimeters - Convert Inches to Centimeters
- Centimeters to Inches - Convert Centimeters to Inches
- Millimeters to Fractional Inches - Convert Millimeters to Fractional Inches
- Mm to Cm - Convert Millimeters to Centimeters
- Cm to Mm - Convert Centimeters to Millimeters
- Cm to M - Convert Centimeters to Meters
- M to Cm - Convert Meters to Centimeters
Fractional Inches to Millimeters Conversion Table
FAQ
How many millimeters in 1 1/2 inches?
1 1/2″ = 38.1 mm
What is the formula to convert 1 1/2″ to millimeters?
The formula is: mm = (numerator ÷ denominator) × 25.4. For 1 1/2″: (3 ÷ 2) × 25.4 = 38.1 mm.
What is the nearest whole millimeter to 1 1/2″?
1 1/2″ = 38.1 mm; the nearest whole millimeter is 38 mm, 0.1 mm less.
See Also
- 1/4" in millimeters
- 2/9" in millimeters
- 2/11" in millimeters
- 2/13" in millimeters
- 2/15" in millimeters
- 2/19" in millimeters
- 2/23" in millimeters
- 2/25" in millimeters
- 2/27" in millimeters
- 2/31" in millimeters
- 3/4" in millimeters
- 3/5" in millimeters
- 3/7" in millimeters
- 3/8" in millimeters
- 3/10" in millimeters
- 3/13" in millimeters
- 3/14" in millimeters
- 3/16" in millimeters
- 3/17" in millimeters
- 3/19" in millimeters
- 1 1/2" в миллиметрах
- 1 1/2" en milímetros
- 1 1/2" em milímetros