What is .15m?

Without context, .15m could refer to a variety of things. Here are a few possibilities:

• Length: .15m could refer to a length of 15 centimeters.
• Currency: .15m could refer to a sum of money, specifically 150,000 of a currency (for example, 150,000 Indonesian Rupiah).
• Concentration: .15m could refer to a solution concentration, specifically a solution that contains 0.15 moles of a solute per liter of solution.
• File format: .15m could be the file extension for a specific type of file, but without additional context it is difficult to determine what the file might contain.