Convert Meters to Inches with Fractions
One meter is equal to exactly 39.3701 inches, or approximately 39 and 3/8 inches.
- Formula:
Inches = Meters × 39.3701
Snap to Fraction
Printable Cheat Sheet
Download or print our high-contrast black-and-white fractional conversion guide, perfect for workbenches and lathes.
Reference Table
Schedule 40 PVC Pipe Dimensions
| Nominal | OD (in) | OD (mm) | Wall (in) | Wall (mm) | ID (in) | ID (mm) | |
|---|---|---|---|---|---|---|---|
| 1/2" | 0.840 | 21.34 | 0.109 | 2.77 | 0.622 | 15.80 | |
| 3/4" | 1.050 | 26.67 | 0.113 | 2.87 | 0.824 | 20.93 | |
| 1" | 1.315 | 33.40 | 0.133 | 3.38 | 1.049 | 26.64 | |
| 1-1/4" | 1.660 | 42.16 | 0.140 | 3.56 | 1.380 | 35.05 | |
| 1-1/2" | 1.900 | 48.26 | 0.145 | 3.68 | 1.610 | 40.89 | |
| 2" | 2.375 | 60.32 | 0.154 | 3.91 | 2.067 | 52.50 | |
| 2-1/2" | 2.875 | 73.02 | 0.203 | 5.16 | 2.469 | 62.71 | |
| 3" | 3.500 | 88.90 | 0.216 | 5.49 | 3.068 | 77.93 | |
| 4" | 4.500 | 114.30 | 0.237 | 6.02 | 4.026 | 102.26 | |
| 6" | 6.625 | 168.27 | 0.280 | 7.11 | 6.065 | 154.05 | |
| 8" | 8.625 | 219.07 | 0.322 | 8.18 | 7.981 | 202.72 |
Unit Conversion & Standards Info
Detailed breakdown of conversion formulas, international standards, dimensional lumber metrics, and conduit sizes.
To convert meters to inches, multiply the meter value by 39.37007874. This factor arises because:
1 inch = 25.4 mm (exactly) 1 meter = 1000 mm 1000 mm / 25.4 mm/inch = 39.37007874... inches
Formula: Inches = Meters × 39.37007874
For example, to convert 2 meters to inches:2m × 39.37007874 = 78.740157 inches
In 1959, the International Yard and Pound Agreement defined 1 inch as exactly 25.4 millimeters. This standardized metric-imperial relations globally across engineering, manufacturing, and commerce.
Common precise multipliers:
- 1 Millimeter = 0.03937008 Inches
- 1 Centimeter = 0.39370079 Inches
- 1 Meter = 39.37007874 Inches
- 1 Foot = 0.3048 Meters (exactly)
- 1 Yard = 0.9144 Meters (exactly)
Nominal sizing (e.g., 2x4, 2x6) refers to the size of the wood before it is dried and planed smooth. The drying process removes moisture, causing shrinkage, while the planing (surfacing) shaves the faces down to a uniform size.
Standard US softwoods dimensional rules:
- Nominal 1x4 is actually 0.75" × 3.5" (19.05 × 88.9 mm)
- Nominal 2x4 is actually 1.5" × 3.5" (38.1 × 88.9 mm)
- Nominal 2x6 is actually 1.5" × 5.5" (38.1 × 139.7 mm)
- Nominal 4x4 is actually 3.5" × 3.5" (88.9 × 88.9 mm)
Switch the matrix toggle from Pure to Industrial above to see nominal lumber dimensions loaded automatically.
Schedule 40 PVC pipes are classified by nominal pipe size, but neither the outer diameter (OD) nor the inner diameter (ID) matches the nominal dimension exactly.
This standard maintains a constant Outer Diameter for a given nominal size so that fittings and connectors are interchangeable, while wall thickness (and thus Inner Diameter) changes depending on pressure schedules (e.g. Schedule 40 vs Schedule 80).
Refer to our interactive Schedule 40 PVC Pipe Dimensions table below for exact outer diameters, wall thicknesses, and inner diameters.