inch per second squared to millimeter per second squared
Convert inch per second squared (in/s²) to millimeter per second squared (mm/s²). Use an editable acceleration converter, conversion formula, and reference table.
1 in/s² = 25.4 mm/s²
Conversion formula
One inch per second squared equals 25.4 millimeter per second squared. Multiply your value in inch per second squared by this factor to get millimeter per second squared. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 inch per second squared:5 × 25.4 = 127 mm/s²
Conversion table
| inch per second squared (in/s²) | millimeter per second squared (mm/s²) |
|---|---|
| 0.01 | 0.254 |
| 0.1 | 2.54 |
| 1 | 25.4 |
| 2 | 50.8 |
| 5 | 127 |
| 10 | 254 |
| 25 | 635 |
| 50 | 1,270 |
| 100 | 2,540 |
| 1000 | 25,400 |
About these measurements
Acceleration is the rate of velocity change.
The base reference used here is the meter per second squared. One inch per second squared is 0.0254 base units; one millimeter per second squared is 0.001 base units.
Important distinctions
Compound units must match the quantity and dimension. Temperature intervals use size factors rather than temperature offsets. Calorie and BTU entries use the explicit definitions shown.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert in/s² to mm/s²?
Multiply the quantity in in/s² by 25.4. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the millimeter per second squared to inch per second squared converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
