Convert from tod to picogram

Unit Definition (tod)
The tod is a traditional unit of weight equal to 2 stone or 1 quarter. The tod is thus equivalent to 28 pounds or about 12.7 kilograms. "Tod" is an old German word meaning a load.

Unit Definition (picogram)
The picogram is a metric unit of mass equal to 10E-12 gram or one millionth of a microgram.