Parts Per Converter

Enter Concentration Value:

From Unit:

Parts per Million (ppm)Parts per Billion (ppb)Parts per Trillion (ppt)Parts per Quadrillion (ppq)Percentage (%)

To Unit:

Parts per Million (ppm)Parts per Billion (ppb)Parts per Trillion (ppt)Parts per Quadrillion (ppq)Percentage (%)

Conversion Options

Show All UnitsDisplay conversion in all concentration units

Conversion Result

All Concentration Units:

Parts per Million (ppm):0 ppm

Parts per Billion (ppb):0 ppb

Parts per Trillion (ppt):0 ppt

Parts per Quadrillion (ppq):0 ppq

Percentage (%):0 %

Concentration Information:

Enter a concentration value to see information

Note: This tool converts between different parts-per notation units and percentage.

About This Parts Per Converter

This tool converts between different parts-per notation units including parts per million (ppm), parts per billion (ppb), parts per trillion (ppt), parts per quadrillion (ppq), and percentage (%). These units are commonly used in chemistry, environmental science, and engineering to describe very small concentrations of substances.

How to Use This Converter

Step-by-Step Guide:

1. Step 1: Enter the concentration value you want to convert
2. Step 2: Select the unit you're converting from
3. Step 3: Select the unit you want to convert to
4. Step 4: Click "Convert Concentration" to see results
5. Step 5: View additional concentration information
6. Step 6: Copy or clear results as needed

Conversion Formulas:

• 1 ppm = 1,000 ppb = 1,000,000 ppt = 1,000,000,000 ppq = 0.0001%
• 1 ppb = 0.001 ppm = 1,000 ppt = 1,000,000 ppq = 0.0000001%
• 1 ppt = 0.001 ppb = 0.000001 ppm = 1,000 ppq = 0.0000000001%
• 1 ppq = 0.001 ppt = 0.000001 ppb = 0.000000001 ppm = 0.0000000000001%
• 1% = 10,000 ppm = 10,000,000 ppb = 10,000,000,000 ppt = 10,000,000,000,000 ppq

Example Conversions:

Input: 100 ppm to ppb
Output: 100,000 ppb

Input: 500 ppb to ppm
Output: 0.5 ppm

Input: 0.5% to ppm
Output: 5,000 ppm