# SI Converter — Units Converter for SI

> Units Converter for SI (iPhone/iPad app by Ramon A. Marchante Castellanos.)

- Source: https://appshunter.io/ios/app/si-converter/id6504356195 (this page in markdown: same URL + `.md`)
- Developer: [Ramon A. Marchante Castellanos](https://appshunter.io/developer/1735326162)
- Category: Utilities, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 17.2 · 4 MB
- Languages: English, French, German, Italian, Portuguese, Spanish
- Released: 2024-06-28
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/si-converter/id6504356195/reviews.md

## What is SI Converter?

SI Converter is allows you to easily convert unit following the global standard of measurement is the International System of Units (SI). 

The intent of this app is to provide a convenient way to convert between the various units of measurement within different systems, as well as to provide a basic understanding of the systems currently in use, and how they interact. 


Supported Units:

Area:

Square Megameters (Mm²)
Square Kilometers (km²)
Square Meters (m²)
Square Centimeter (cm²)
Square Millimeters (mm²)
Square Micrometers (µm²)
Square Nanometers (nm²)
Square Inches (in²)
Square Feet (ft²)
Square Yards (yd²)
Square Miles (mi²)
Acres (acres)
Ares (a)
Hectares (ha)

Lengh:

Megameters (Mm)
Kilometers (kM)
Hectometers (hm)
Decameters (dam)
Meters (m)
Decimeters (dm)
Centimeters (cm)
Millimeters (mm)
Micrometers (µm)
Nanometers (nm)
Picometers (pm)
Inches (in)
Feet (ft)
Yards (yd)
Miles (mi)
Scandinavian Miles (smi)
Light Years (ly)
Nautical Miles (NM)
Fathoms (ftm)
Furlongs (fur)
Astronomical Units (ua)
Parsecs (pc)

Pressure:

Newtons Per Meter Squared (Equivalent to Pascals) (N/m²)
Gigapascals (GPa)
Megapascals (MPa)
Kilopascals (kPa)
Hectopascals (hPa)
Inches of Mercury (inHg)
Bars (bar)
Millibars (mbar)
Millimeters of Mercury (mmHg)
Pounds Per Square Inch (psi)

Temperature:

Kelvin (K)
Degree Celsius (°C)
Degree Fahrenheit (°F)


volume:

Megaliters (ML)
Kiloliters (kL)
Liters (L)
Deciliters (dL)
Centiliters (cL)
Milliliters (mL)
Cubic Kilometers (km³)
Cubic Meters (m³)
Cubic Decimeters (dm³)
Cubic Millimeters (mm³)
Cubic Inches (in³)
Cubic Feet (ft³)
Cubic Yards (yd³)
Cubic Miles (mi³)
Acre Foeet (af)
Bushels (bsh)
Teaspoons (tsp)
Tablespoons (tbsp)
Fluid Ounces (fl oz)
Cups (cup)
Pints (pt)
Quarts (qt)
Gallons (gal)
Imperial Teaspoons (tsp)
Imperial Tablespoons (tbsp)
Imperial Fluid Ounces (fl oz)
Imperial Pints (pt)
Imperial Quarts (qt)
Imperial Gallons (gal)
Metric Cups (metric cup)

Mass:

Kilograms (kg)
Grams (g)
Decigrams (dg)
Centigrams (cg)
Milligrams (mg)
Micrograms (µg)
Nanograms (ng)
Picograms (pg)
Ounces (oz)
Pounds (lb)
Stones (st)
Metric Tons (t)
Short Tons (ton)
Carats (ct)
Ounces Troy (oz t)
Slugs (slug)

angle:

Degrees (°)
Arc Minutes 
Arc Seconds 
Radians (rad)
Gradians (grad)
Revolutions (rev)

Speed:

Meters Per Second (m/s)
Kilometers Per Hour (km/h)
Miles Per Hour (mph)
Knots (kn)


time:

Hours (hr)
Minutes (min)
Seconds (sec)
Milliseconds (ms)
Microseconds (μs)
Nanoseconds (ns)
Picoseconds (ps)


## Version history (last 3 releases)

### 1.2 — 2024-09-29

Visualization improvements

### 1.1 — 2024-07-08

New translations

### 1.0 — 2024-06-28

No release notes.

## Apps similar to SI Converter

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Twilight Time](https://appshunter.io/ios/app/twilight-time/id6503278537) | — | Free | Utilities |
| [Universal Converter!](https://appshunter.io/ios/app/universal-converter/id6448482217) | — | Free | Utilities |
| [Catenary Cables](https://appshunter.io/ios/app/catenary-cables/id6447140970) | 5.0 (6) | Free | Utilities |
| [Accurate unit converter 2024](https://appshunter.io/ios/app/accurate-unit-converter-2024/id1639167284) | — | Free | Utilities |
| [Converter, Calculator & Tools](https://appshunter.io/ios/app/converter-calculator-and-tools/id6692620656) | — | Free | Utilities |
| [CNVRT: SI Unit Conversion Tool](https://appshunter.io/ios/app/cnvrt-si-unit-conversion-tool/id1607762263) | 4.5 (17) | $4.99 | Utilities |

## More apps by Ramon A. Marchante Castellanos

- [La Dolorosa](https://appshunter.io/ios/app/la-dolorosa/id6504193249)
- [Easy QR Reader - Scanner](https://appshunter.io/ios/app/easy-qr-reader-scanner/id6507828958)
- [The Flags Game - flags quiz](https://appshunter.io/ios/app/the-flags-game-flags-quiz/id6615083389)
- [Rock, Paper, or Scissors solo](https://appshunter.io/ios/app/rock-paper-or-scissors-solo/id6695754373)
- [QR & Barcode Manager](https://appshunter.io/ios/app/qr-and-barcode-manager/id6736938711)

All apps by Ramon A. Marchante Castellanos: https://appshunter.io/developer/1735326162

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-16.*