How do you convert 3.1 kilograms into milligrams? Prealgebra Ratios, Proportions, Units and Rates Metric System Unit Conversion 1 Answer Shwetank Mauria Sep 16, 2016 In #3.1# kilogram there are #3,100,000# milligrams. Explanation: There are #1000# grams in each kilogram and #1000# milligram in each gram and thus #1000xx1000=1000000# milligrams in each kilograms Hence in #3.1# kilogram there are #3.1xx1000000=3,100,000# milligrams. Answer link Related questions Which one is greater #5000cm.# or #5# meters? How many yards in a mile? Why is the metric system important? What is the metric system? How do you remember the metric system? How does the metric system work? How was the metric system developed? What is the conversions of grams to mL? How many ml is in 2 liters? How do you convert 1.5 kg/L to g/mL? See all questions in Metric System Unit Conversion Impact of this question 7595 views around the world You can reuse this answer Creative Commons License