The Waitawheta calculator result above reports that 117.33 tons of soil organic carbon are held in the top 300mm of soil and that carbon, converted to NZ units has a value of $10,765.03 per Ha. In addition to the financial information reported on the carbon calculator the measurement and monitoring of soil organic carbon is important because the soil organic carbon trend is an important indicator of the health and functionality of the soil. Soil organic carbon plays a crucial role in the soil’s natural nitrogen cycle and the soil’s ability to hold water is very dependant on it.