This study estimates the returns to boys' education for rural Bangladeshi households by accounting for some conventionally neglected items: direct costs of education, foregone child labour earnings, and option value. The estimated returns are 13.5% for primary education, 7.8% for junior-secondary education, 12.9% for higher-secondary education, and 9.7% for higher education; the resulting option value from primary education is 5.3%. These results suggest that there is economic rationale for non-poor rural households to invest in boys' education, especially at the primary level. (Contains 1 table, 2 figures and 3 notes.)