Convert acceleration units — m/s², ft/s², g-force, Gal and more.
| Unit | Name | Value |
|---|---|---|
| m/s² | Meter/Square Second | 0.0254 |
| cm/s² | Centimeter/Square Second | 2.54 |
| ft/s² | Foot/Square Second | 0.083333333 |
| g | Standard Gravity | 0.0025900792 |
| Gal | Gal (cm/s²) | 2.54 |
| mG | Millig | 2.5900792 |
Formula: Milligravity = in/s² × 2.59
Multiply any in/s² value by 2.59 to get Milligravity.
Reverse: in/s² = Milligravity × 0.3861
Common acceleration values — factor: 1 in/s² = 2.59 mg
| in/s² (in/s²) | Milligravity (mg) | Context |
|---|---|---|
| 0.001 in/s² | 0.00259 mg | Micro |
| 0.1 in/s² | 0.259 mg | Very small |
| 1 in/s² | 2.59 mg | 1 in/s² |
| 10 in/s² | 25.9 mg | 10 in/s² |
| 100 in/s² | 259 mg | 2.6 g range |
| 386 in/s² | 999.8 mg | 1 g = 386.1 in/s² |
| 500 in/s² | 1295 mg | ~1.3 g |
| 1000 in/s² | 2590 mg | ~2.6 g |
| 3860 in/s² | 9998 mg | ~10 g |
| 5000 in/s² | 1.295e+04 mg | ~13 g |
| 1e+04 in/s² | 2.59e+04 mg | ~26 g |
| 5e+04 in/s² | 1.295e+05 mg | ~130 g |
| 1e+05 in/s² | 2.59e+05 mg | ~259 g |
| 5e+05 in/s² | 1.295e+06 mg | ~1,295 g |
| 1e+06 in/s² | 2.59e+06 mg | ~2,590 g |
1 in/s² = 2.59 mg.
9.807 m/s² = 1 g = 32.17 ft/s² = 980.7 cm/s² — use as reference.
Multiply result by 0.3861 to recover the original in/s² value.
Specifies aircraft and spacecraft acceleration loads in g and m/s² for structural design and pilot tolerance.
Measures vehicle acceleration performance (0–100 km/h) and braking deceleration in m/s² and g.
Uses Gal and mGal to measure variations in Earth's gravitational field for mineral exploration.
Programs joint acceleration limits in m/s² or in/s² for servo motor control and trajectory planning.
Calculates seismic acceleration loads (in g or m/s²) for earthquake-resistant building design.
Measures athlete acceleration performance using accelerometers reporting in g or m/s².
Inches per second squared (in/s²) is used in precision mechanical engineering and robotics where displacements are measured in inches. One in/s² = 0.0254 m/s².
In/s² appears in servo motor specifications, CNC machine acceleration profiles, and vibration analysis in US manufacturing. A servo motor might be rated for 500 in/s² maximum acceleration; a hard drive read head accelerates at thousands of in/s².
Interesting fact: Hard drive read/write heads accelerate at up to 550,000 in/s² (1,400 g) and can position themselves across the platter in milliseconds — making them among the fastest-moving precision components in consumer electronics.
Milligravity (mg) equals 0.001g = 0.00980665 m/s². It is used to specify very small accelerations in spacecraft attitude control, precision instruments, microgravity research, and inertial sensor specifications.
Accelerometers in smartphones and wearables typically have full-scale ranges of ±2g to ±16g with resolutions in the mg range. Micro-g (μg = 10⁻⁶ g) accelerometers are used on the International Space Station to measure residual vibration from crew movement.
Interesting fact: Seismic activity too small to feel (micro-earthquakes) produces accelerations of less than 1 mg. The human threshold of perception for whole-body vibration is approximately 1–5 mg depending on frequency.
Converting in/s² to Milligravity is common in aerospace, automotive, geophysics, and robotics. Physics and SI engineering use m/s²; US aerospace uses ft/s²; geophysics uses Gal (cm/s²); and g-force is universal. Key anchor: Earth surface gravity = 9.807 m/s² = 1 g = 32.17 ft/s² = 980.7 Gal.
Quick reference: 10 in/s² = 25.9 mg. Reverse: 1 mg = 0.3861 in/s². Factor: 1 in/s² = 2.59 mg.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.