Simple and free to use.

Following are the Unit Converters included:
• Area
• Cooking
• Currency
• Digital Storage
• Energy
• Fuel Consumption
• Length / Distance
• Mass / Weight
• Power
• Pressure
• Speed
• Temperature
• Time
• Torque
• Volume

Help:
• Use the hamburger side menu for switching between conversions and select the units you require. To open the menu, swipe in from the left side of the app, or press the 3 lines hamburger in the top left corner.
• Long-tap on the converted value to copy it to the clipboard.
• Pressing the circle arrow button swaps the conversion unit on screen.