To use the un-ionized ammonia calculator, simply enter your values for Temperature (in °C) and pH in the boxes below and then click on the "Calculate Now" button. The program will display the percentage of total ammonia that is un-ionized.

If you include an ammonia concentration, the program will respond with both the Percent and the Concentration of un-ionized ammonia. Please Note: you do not have to enter a Concentration. Also be aware that the program rounds values to 3 decimals, a reasonable limit to the precision of ammonia measurements.

pH :  
Ammonia Concentration *Optional:  mg/L
Percent:  %
Unionized:  mg/L