How much does a child need? The NIH says the RDA of riboflavin for infants and children is 0.3 mg for 0-6 months old; 0.4 mg for 7-12 months old; 0.5 mg for 1-3 years old; 0.6 mg for 4-8 years old; and 0.9 mg for 9-13 years old.
The distance between Stafford and Boston in a straight line is 428 miles or 688.65 Kilometers. 1  Driving Directions & Drive Times from Stafford to Boston can be found further down the page. Driving distances, maps and journey times are currently provided by Google mapping systems.
Distance from Boston, MA to Bangkok, Thailand. The total distance from Boston, MA to Bangkok, Thailand is 8,533 miles. This is equivalent to 13â733 kilometers or 7,415 nautical miles. Your trip begins in Boston, Massachusetts. It ends in Bangkok, Thailand. Your flight direction from Boston, MA to Bangkok, Thailand is North (10 degrees from North). The distance calculator helps you figure out how far it is to fly from Boston, MA to Bangkok, Thailand. It does this by computing the straight line flying distance (as the crow flies). It uses the great circle formula to compute the total travel mileage.