Length Conversion Charts

Millimeters, inches, centimeters, feet, and meters

Convert between imperial and metric length measurements with our comprehensive collection of printable charts. Essential for woodworking, construction, engineering, and international projects.

6 Available of 13 Charts
Most Popular: MM to Inches
More Coming Soon
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🔥 Popular Length Charts

MM → InchesPro template
MillimetersDecimal (in)Fraction (in)
0.50.0200
10.0391/16
6.350.2501/4
12.70.5001/2
190.7483/4
25.41.0001
38.11.5001 1/2
50.82.0002
76.23.0003
101.64.0004
#1 Popular

MM to Inches Chart

Convert millimeters to inches with decimals and fractions for woodworking and engineering.

decimalfractionprecision
  • Customizable range and precision
  • Multiple template styles
Customize & Download Free
Inches → CMModern template
Inchesft'-inCentimetersMeters
11"2.50.03
66"15.20.15
121' 0"30.50.30
242' 0"61.00.61
302' 6"76.20.76
363' 0"91.40.91
484' 0"121.91.22
605' 0"152.41.52
635' 3"160.01.60
726' 0"182.91.83
#2 Popular

Inches to CM Chart

International shopping, sizing, and DIY conversions from inches to centimeters.

shoppingsizing
  • Customizable range and precision
  • Multiple template styles
Customize & Download Free
CM → InchesSizing helper
CentimetersMetersDecimal (in)Fraction (in)ft'-in
50.051.971 15/16"0'2"
100.103.943 15/16"0'4"
200.207.877 7/8"0'8"
300.3011.8111 13/16"1'0"
500.5019.6919 11/16"1'8"
700.7027.5627 9/16"2'4"
900.9035.4335 7/16"2'11"
1001.0039.3739 3/8"3'3"
1301.3051.1851 3/16"4'3"
1801.8070.8770 7/8"5'11"
#3 Popular

CM to Inches Chart

Convert centimeters to inches with precision for international sizing and measurements.

sizinginternationalus-shopping
  • Customizable range and precision
  • Multiple template styles
Customize & Download Free

All Length Conversion Charts

6 available now,7 coming soon

MM → InchesPro template
MillimetersDecimal (in)Fraction (in)
0.50.0200
10.0391/16
6.350.2501/4
12.70.5001/2
190.7483/4
25.41.0001
38.11.5001 1/2
50.82.0002
76.23.0003
101.64.0004

MM to Inches Chart

Convert millimeters to inches with decimals and fractions for woodworking and engineering.

decimalfractionprecision
Download Free
Inches → CMModern template
Inchesft'-inCentimetersMeters
11"2.50.03
66"15.20.15
121' 0"30.50.30
242' 0"61.00.61
302' 6"76.20.76
363' 0"91.40.91
484' 0"121.91.22
605' 0"152.41.52
635' 3"160.01.60
726' 0"182.91.83

Inches to CM Chart

International shopping, sizing, and DIY conversions from inches to centimeters.

shoppingsizing
Download Free
CM → InchesSizing helper
CentimetersMetersDecimal (in)Fraction (in)ft'-in
50.051.971 15/16"0'2"
100.103.943 15/16"0'4"
200.207.877 7/8"0'8"
300.3011.8111 13/16"1'0"
500.5019.6919 11/16"1'8"
700.7027.5627 9/16"2'4"
900.9035.4335 7/16"2'11"
1001.0039.3739 3/8"3'3"
1301.3051.1851 3/16"4'3"
1801.8070.8770 7/8"5'11"

CM to Inches Chart

Convert centimeters to inches with precision for international sizing and measurements.

sizinginternationalus-shopping
Download Free
Feet → MetersConstruction
Feet (ft)Feet & InchesMeters (m)
11'0"0.305
33'0"0.914
66'0"1.829
1010'0"3.048
1515'0"4.572
2020'0"6.096
2525'0"7.620
3030'0"9.144
4040'0"12.192
5050'0"15.240

Feet to Meters

Imperial to metric conversion with engineering-friendly precision and printable exports.

constructioninternationalblueprints
Download Free
Inches → MMWorkshop preset
Inches (fraction)Inches (decimal)MillimetersCentimeters
1/4"0.2506.350.64
1/2"0.50012.701.27
1"1.00025.402.54
1 1/2"1.50038.103.81
2"2.00050.805.08
2 1/2"2.50063.506.35
3"3.00076.207.62
4"4.000101.6010.16
5"5.000127.0012.70
6"6.000152.4015.24

Inches to MM

Imperial to metric conversions for hardware sizing and fabrication.

hardwarefabrication
Download Free
Meters → FeetTravel preset
Meters (m)Feet (ft)Feet & InchesReference
0.51.641'8"
13.283'3"~3 feet
1.85.915'11"Tall person
39.849'10"Standard ceiling
516.4016'5"Basketball hoop
1032.8132'10"One story
2065.6265'7"
50164.04164'1"
100328.08328'1"
150492.13492'2"

Meters to Feet

Height, elevation, and construction conversions from meters to feet.

constructionheight
Download Free
🚧
Coming Soon

MM to Microns

Small-scale length conversions for CNC, machining, and lab work.

cncmachining
🚧
Coming Soon

Inches to Feet

Quick inches-to-feet conversion chart for DIY, construction, and measurements.

constructiondiy
🚧
Coming Soon

Feet to Inches

Convert feet to inches for woodworking, furniture plans, and building layouts.

constructionblueprints
🚧
Coming Soon

Yards to Meters

Convert yards to meters for sports, fabrics, and international measurements.

internationalsports
🚧
Coming Soon

Meters to Yards

Convert meters to yards for sports fields, fabrics, and travel.

internationalsports
🚧
Coming Soon

Fraction to Decimal (Inches)

Convert inch fractions to decimals for woodworking, hardware sizing, and measuring.

fractiondecimalprecision
🚧
Coming Soon

Decimal to Fraction (Inches)

Convert inch decimals to common fractions for measuring, woodworking, and machining.

fractiondecimalprecision

More Charts Coming Soon!

We're actively developing additional length conversion charts based on user feedback. Each new chart will feature the same precision and customization options you expect.

Next: Inches to Feet
Then: Feet to Inches

Understanding Length Conversions

Length conversions are among the most commonly needed measurement conversions, especially when working across international borders or between different industries. The ability to quickly convert between imperial (inches, feet) and metric (millimeters, centimeters, meters) systems is essential for accurate work in woodworking, construction, engineering, and everyday applications.

📐Imperial vs Metric System

The imperial system, primarily used in the United States, measures length in inches, feet, and yards. The metric system, used by most of the world, uses millimeters, centimeters, and meters. Understanding both systems is crucial for international collaboration and trade.

The imperial system is based on historical units that evolved organically, while the metric system was designed to be decimal-based and logical. This makes metric conversions mathematically simpler (1 meter = 100 centimeters = 1000 millimeters), but imperial measurements remain deeply embedded in certain industries and regions.

Key Conversion Factors:

  • 1 inch = 25.4 millimeters (exactly, by international agreement)
  • 1 foot = 30.48 centimeters (12 inches × 2.54 cm)
  • 1 meter = 39.37 inches (approximately 3.28 feet)
  • 1 yard = 0.9144 meters (3 feet or 36 inches)

💡 Note: The 1 inch = 25.4mm conversion was officially standardized in 1959 by an international agreement between English-speaking nations.

🔧Common Applications

Length conversion charts are indispensable tools across numerous fields and applications. Here are the most common use cases:

🪵

Woodworking & Carpentry

Converting between standard lumber sizes (imperial) and metric measurements. Essential when working with international wood suppliers or following plans from different countries.

🏗️

Construction & Architecture

Reading international building plans and specifications. Critical when contractors need to interpret architectural drawings from different measurement systems.

⚙️

Engineering & Design

Designing parts that interface with both imperial and metric components. Particularly important in automotive, aerospace, and mechanical engineering.

🏭

Manufacturing & Machining

Operating machinery calibrated in different measurement systems. CNC operators frequently need to convert between metric and imperial tooling specifications.

Length Conversion Quick Reference

Common conversions at a glance. For detailed charts with extended ranges, download our printable PDFs above.

Metric → Imperial

MetricImperial
1 mm0.039 inches
10 mm0.394 inches
25 mm0.984 inches
1 cm0.394 inches
10 cm3.937 inches
1 meter39.37 inches / 3.28 feet
10 meters32.81 feet / 10.94 yards

Imperial → Metric

ImperialMetric
1 inch25.4 mm / 2.54 cm
6 inches152.4 mm / 15.24 cm
12 inches (1 ft)304.8 mm / 30.48 cm
1 foot30.48 cm / 0.305 m
1 yard91.44 cm / 0.914 m
10 feet304.8 cm / 3.048 m
100 feet30.48 meters

Need more values or custom ranges?

Download Full Conversion Charts

Frequently Asked Questions

Common questions about length conversion charts

1Why is 1 inch exactly 25.4mm?

In 1959, English-speaking countries (US, UK, Canada, Australia, New Zealand, South Africa) signed an international agreement standardizing the relationship between imperial and metric units. They agreed that 1 inch = 25.4 millimeters exactly. This replaced earlier slightly different definitions and ensures consistent conversions worldwide.

2Which is better: decimal or fractional inches?

It depends on your application. Fractional inches (1/16", 1/32") are preferred in traditional woodworking, construction, and when using imperial measuring tools like tape measures and rulers. Decimal inches (0.125", 0.0625") are preferred in machining, engineering, CAD design, and when mathematical calculations are needed. Our charts offer both formats so you can choose what works best for your workflow.

3How accurate are your conversion charts?

All our conversions use the internationally standardized formulas (1 inch = 25.4mm exactly). The accuracy of the charts depends on the precision level you select. For most applications, 2-3 decimal places (or 1/32 inch fractions) provide more than sufficient accuracy. Professional machining applications may require 4+ decimal places, which our customizable charts support.

4Can I customize the range of values in the chart?

Yes! All our charts are fully customizable. You can set your own minimum and maximum values, increment size, precision level (decimal places or fraction denominator), and choose between different template styles. The preview updates in real-time so you can see exactly what you'll download before generating the PDF.

5What paper size should I use for printing?

Our charts are designed to print perfectly on standard paper sizes: Letter (8.5" × 11") - Standard US paper size, perfect for most charts; A4 (210mm × 297mm) - International standard, slightly longer than Letter; A5 (148mm × 210mm) - Portable size, great for tool boxes and quick reference. You can select your preferred paper size when customizing your chart. The layout automatically adjusts to fit your chosen paper size.

6Are these charts suitable for professional woodworking?

Absolutely! Our length conversion charts are used by professional woodworkers, carpenters, and furniture makers worldwide. The fractional inch format with 1/32" or 1/64" precision is ideal for woodworking applications. Many professionals laminate our charts and keep them posted in their workshops for quick reference. The accuracy meets or exceeds professional standards, and the customization options let you create charts specifically for your most common working ranges.