Work out diaper usage instantly with clear inputs, formula shown and shareable results.
Total nappies are changes per day times the number of days, and the pack count rounds that total up to whole packs of 40. Newborns need ten to twelve changes a day and toddlers five to six, so recalculating as the rate drops avoids stockpiling the wrong size.
Quantity
nappies = changes per day x days
Packs
packs = ceiling(total nappies / nappies per pack)
nappies = changes per day x days. Total nappies are changes per day times the number of days, and the pack count rounds that total up to whole packs of 40.
Newborns need ten to twelve changes a day and toddlers five to six, so recalculating as the rate drops avoids stockpiling the wrong size.
Enter nappy changes per day, period to plan for, price per nappy. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.