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CM to MM Calculator - Centimeters to Millimeters Converter
Convert centimeters to millimeters and vice versa. Free woodworking measurement converter with inch equivalents. Perfect for precise measurements in furniture making and construction projects.
Last updated: 1/26/2025
Display Options
Value to Convert
From Unit
To Unit
Conversion Results
Metric Equivalents:
Centimeters: 0 cm
Millimeters: 0 mm
Imperial Equivalents:
Inches: 0"
Feet: 0 ft
Conversion Formula:
Millimeters = Centimeters × 10Conversion Factors:
- • 1 centimeter = 10 millimeters
- • 1 millimeter = 0.1 centimeters
- • 1 centimeter = 0.393701 inches
- • 1 millimeter = 0.0393701 inches
- • 1 inch = 2.54 centimeters = 25.4 millimeters
Quick Conversions
Click any conversion above to quickly set that value in the calculator.
Understanding Metric Measurements in Woodworking
Metric measurements provide precision and simplicity for woodworking projects. Understanding cm and mm conversions is essential for accurate measurements.
Precision Advantage
Metric measurements offer decimal-based precision. 1 cm = 10 mm makes calculations simple and reduces measurement errors in detailed woodworking.
When to Use Each
Use centimeters for general measurements and overall dimensions. Use millimeters for precise work like joinery, hardware placement, and fine tolerances.
Easy Conversion
Converting between cm and mm is straightforward: multiply by 10 to go from cm to mm, divide by 10 to go from mm to cm. No complex fractions needed.
Metric vs Imperial in Woodworking
Metric Advantages:
- • Decimal-based (no fractions)
- • Universal standard
- • Precise small measurements
- • Easy unit conversion
- • Better for CNC work
When to Use Each Unit:
- • mm: Hardware, tight tolerances
- • cm: Small parts, measurements
- • inches: Traditional lumber sizes
- • feet: Overall project dimensions
Many modern woodworkers use both systems: metric for precision work and imperial for lumber sizing and traditional measurements.
Practical Woodworking Applications
Joinery Work
Precise mm measurements for mortise and tenon joints, dovetails, and other fine joinery where accuracy is critical.
Hardware Installation
European hardware often uses metric measurements. Convert between cm and mm for accurate drilling and mounting.
CNC Programming
CNC machines often work in metric units. Convert measurements for programming and ensure precision in automated cutting.
International Plans
Many woodworking plans use metric measurements. Convert between units to work with international designs and specifications.
Quality Control
Use mm measurements for checking tolerances and ensuring parts fit correctly in precision assemblies.
Tool Setup
Set up router bits, saw blades, and other tools using precise metric measurements for consistent results.
Frequently Asked Questions
How do you convert centimeters to millimeters?
To convert centimeters to millimeters, multiply by 10. For example: 5 cm × 10 = 50 mm. This is because there are 10 millimeters in every centimeter.
How do you convert millimeters to centimeters?
To convert millimeters to centimeters, divide by 10. For example: 50 mm ÷ 10 = 5 cm. This conversion is essential for woodworking when working with different measurement scales.
Why use a CM to MM converter for woodworking?
Woodworking requires precise measurements. This converter helps when switching between centimeter and millimeter measurements on plans, when using different measuring tools, or when working with mixed metric specifications.
Does the calculator show inch equivalents?
Yes! Our calculator displays both metric conversions and imperial inch equivalents. This is helpful when working with international plans or when you need to switch between metric and imperial systems.
How precise are the conversions?
The metric conversions (cm ↔ mm) are exact since they use base-10 conversion. Imperial conversions use standard factors: 1 inch = 2.54 cm exactly, providing high precision for professional woodworking applications.
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