I take 5000 IU pills, and they're labeled as 125 mcg. The 0.532mg pills they were getting would thus be around 4.25x as much, or a bit over 21,000 IU based on h

I take 5000 IU pills, and they're labeled as 125 mcg. The 0.532mg pills they were getting would thus be around 4.25x as much, or a bit over 21,000 IU based on how D3 is usually labeled for over-the-counter purchase. Though my pills are "cholecalciferol" not "calcifediol", so there's not a perfect 1:1 correspondance, but your body converts cholecalciferol into calcifediol, so based on nothing else my above calculation is probably not far off.