Mila's Speed Converter PRO

Speed shows up as mph on a highway sign, m/s in a physics problem, knots in aviation, and mm/s in a lab datasheet — often in the same project. Mila's Speed Converter PRO is a standalone iPhone app from the developer of Mila's Tools (Apple Staff Pick, 4.8 from 1,200+ reviews) with 19 linked speed units that all update the moment you type.

Metric, imperial, and scientific units

Units are grouped for quick scanning: metric from mm/s through km/s; US customary and imperial rates including ipm, fps, mph, and miles per second; knots for nautical work; Mach for relative airflow; and the speed of light (c) for order-of-magnitude comparisons. Favorites and hide-units keep your everyday set at the top.

Built for quick lookups

• Real-time conversion — one entry refreshes every visible unit
• Share all results as formatted text for notes or messages
• Offline — no connection required
• Alternate home-screen icons

Common reasons to convert speed

• Running and cycling pace (min/km vs. mph)
• Aviation and marine knots vs. km/h or mph
• Engineering and science in m/s, km/h, or fps
• Teaching or curiosity (how Mach compares to highway speed)

Frequently asked questions

How many speed units are included?

Nineteen, spanning metric, imperial/US customary, knots, Mach, and the speed of light.

Do I pick a source unit before converting?

No. Type into any field; the rest update automatically.

Can I hide units I never use?

Yes. Show only the units you need and star favorites for the top of the list.

Is this separate from Mila's Tools?

Yes — same conversion quality as the parent app's speed category, in a speed-only interface.

Privacy

Values you enter are not uploaded. Mila's Speed Converter PRO works entirely on your device.

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