Convert 300 MM to Inches - Precision Calculator

Convert 300 millimeters to inches with precision control

Quick Answer
300 mm = 11.8110 in
โ‰ˆ 11 13/16" (fractional)
1 inch = 25.4 mm ยท 300 mm รท 25.4 = 11.8110 in

๐Ÿ“ Visual Size Comparison

Real-world comparison
About a basketball (240 mm)
Actual size300 mm = 11.8110" (11 13/16")
Millimeters (mm)501001502002500300 mmInches (in)1.02.03.04.05.06.07.08.09.01011011.811"
Millimeter ticks
Inch ticks (1/16")
Note:The ruler shows actual size. You can verify it against a physical ruler.

Detailed Results

Decimal (4 places)
11.8110 in
Fraction (1/16")
11 13/16"
2 / 4 / 6 decimals
11.81 in ยท 11.8110 in ยท 11.811024 in
Reverse check
11.8110 in ร— 25.4 = 300 mm
11.8110 in
11 13/16"
300 mm = 11.8110 inches
Formula: 300 mm รท 25.4 = 11.8110 inches

Adjust Precision

Results at Different Precisions

2 Decimal Places
11.81 in
4 Decimal Places
11.8110 in
6 Decimal Places
11.811024 in

Fractional Inch Results

1/8" Precision
11 4/5"
1/16" Precision
11 13/16"
1/32" Precision
11 13/16"

๐Ÿชต Woodworking Application

For woodworking projects, 300 mm converts to approximately 11 13/16" when using 1/16" precision, which is standard for most woodworking measurements.

Common Wood Sizing:
Thick lumber or beam sizing

โš™๏ธ Engineering Application

In engineering contexts, 300 mm equals 11.811024 inches with high precision (6 decimal places) for accurate technical specifications.

Engineering Format:
300 mm (11.811024")

๐Ÿ›’ E-commerce Product Description

For online product listings, you can describe this measurement as:

Standard: Size: 300 mm (11.81 inches)
Approximate: Approx. 11.81" (300mm)
Dimension: 300mm / 11.81"

๐Ÿ–จ๏ธ 3D Printing Application

For 3D printing, 300 mm is the standard metric measurement. The imperial equivalent is 11.8110 inches.

3D Print Context:
Build plate or large model size

Where This Size Is Used

Small sizes (< 10 mm)
  • Precision measurement and tolerances
  • Electronics components and connectors
  • Jewelry and craft parts
Medium sizes (10โ€“100 mm)
  • Common hardware and fasteners
  • Phones, tablets, and accessories
  • Furniture fittings and fixtures
Large sizes (> 100 mm)
  • Construction and building materials
  • Furniture dimensions and clearances
  • Engineering project measurements
300 mm is close to A4 paper width (210 mm)
300 mm is close to Soda can diameter (66 mm)
300 mm is close to Ruler width (30 mm)

Quick Reference Table

MillimetersInches (Decimal)Inches (Fraction)
150.00 mm5.9055 in5 10/11"
225.00 mm8.8583 in8 6/7"
300.00 mm11.8110 in11 13/16"
375.00 mm14.7638 in14 10/13"
450.00 mm17.7165 in17 5/7"
600.00 mm23.6220 in23 5/8"

Frequently Asked Questions

How do I convert 300 mm to inches?

To convert 300 millimeters to inches, divide by 25.4 (the exact conversion factor). The result is 11.8110 inches.

What is 300 mm in fractional inches?

300 mm is approximately 11 13/16" when expressed as a fraction. This is commonly used in woodworking and construction.

Is this conversion accurate for engineering purposes?

Yes, our conversion uses the standard conversion factor (1 inch = 25.4 mm exactly) and supports up to 6 decimal places for high-precision engineering applications.

Need to Convert Different Values?

Use our interactive converter tool to convert any millimeter value to inches with real-time results.

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Quick Conversion Links

Popular millimeter and inch values with dedicated conversion pages.

Inches to MM Chart