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One inch
Close matchExactly 1 inch = 25.4mm
Everyday Items
Conversion breakdown
25 mm to inches
mmtoinches.imView decimal inches, fractional inches (1/32" precision), and feet+inches for 25 millimeters. Perfect for CNC setups, woodworking, construction documents, and any workflow where a single metric dimension needs multiple imperial formats.
Decimal inches
0.9843"
25 mm = 0.9843" (rounded to four decimals)
Fractional inches (1/32")
31/32"
Error ±0.015502"
Feet + inches
0.9843"
Total inches 0.9843"
Real-world size reference
Visualize 25 mm with familiar everyday objects and common items for better understanding.
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Golf ball diameter
Close matchMinimum golf ball diameter (42.67mm)
Everyday Items
Note about measurements
Exact matches indicate precise dimensional equivalence. Close matches show similar sizes for visual reference. Always verify exact specifications for precision work, especially in engineering, manufacturing, or construction applications.
Visual size comparison
See how 25 mm compares to common reference sizes
Sizes are scaled for comparison. Click "Show 1:1 actual size" above to see the true physical size.
Tip: This visualization helps you quickly understand the relative size of 25 mm. Toggle between scaled comparison and 1:1 actual size using the button above.
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Common questions about 25 mm
Quick answers to frequently asked questions about this measurement, conversions, and practical applications.
25 mm equals 0.9843 inches. This conversion uses the international standard where 1 inch = 25.4 millimeters exactly.
25 mm is approximately 1". Approximately 1", with a 0.40mm difference. Suitable for rough measurements but verify for precision work.
25mm is approximately 1 inch, the width of a typical belt strap, or a golf ball diameter (42.7mm is too large, so 25mm is about the size of a large marble or small bouncy ball).
Use millimeters when working with metric tools, international standards, or technical specifications. Use inches for imperial-system projects, construction in the US/UK, or when collaborating with teams using imperial measurements. For precision machining, decimal inches are preferred over fractions.
Acceptable tolerance depends on your application. General woodworking: ±0.5mm is typical. Metal fabrication: ±0.1-0.3mm. Precision machining: ±0.01-0.05mm. Electronics: ±0.02mm or tighter. Always check your project specifications or industry standards.
Still have questions? Try the interactive converter for more conversion options and tools.
Related conversions
Commonly used sizes near 25 mm, grouped by relevance. Each recommendation includes context to help you find the right conversion quickly.
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Conversion details
All calculations rely on the international standard of 1 inch = 25.4 millimeters. Decimal values are rounded to four places, fractional results use 1/32" increments with automatic simplification, and feet+inches formatting is ideal for dimensions above 300 mm. For higher precision, URL parameters, or bulk conversion needs, head back to the main calculator or batch converter.
At 25 mm (~0.9843 in), This falls in a common fabrication / home‑improvement range. Use decimal inches for calculations; fractional inches aid field readability; consider adding tolerances on drawings.