Question: 1 ksi is equal to how many n/mm2?
Answer: 1 ksi = 6.8947572932 N/mm2. 1 x 6.8947572932 N/mm2 = 6.8947572932 Newton Per Square Millimeter. Definition: In relation to the base unit of [pressure] => (pascals), 1 Ksi (ksi) is equal to 6894757.2932 pascals, while 1 Newton Per Square Millimeter (N/mm2) = 1000000 pascals.