Ruth 2:17-18

17So Ruth gleaned in the field until evening. Then she threshed the barley she had gathered, and it amounted to about an ephah. That is, probably about 30 pounds or about 13 kilograms

18She carried it back to town, and her mother-in-law saw how much she had gathered. Ruth also brought out and gave her what she had left over after she had eaten enough.