Work out nappy cost per year instantly with clear inputs, formula shown and shareable results.
Daily cost is nappies per day times unit price plus the daily wipes cost, then annualised over 365 days and divided by twelve for a monthly figure. At six nappies a day the annual bill is dominated by a few pence of unit price, so a small change in price per nappy moves the yearly total by a surprising amount.
Annual cost
annual = (nappies per day x price per nappy + daily wipes cost) x 365
annual = (nappies per day x price per nappy + daily wipes cost) x 365. Daily cost is nappies per day times unit price plus the daily wipes cost, then annualised over 365 days and divided by twelve for a monthly figure.
At six nappies a day the annual bill is dominated by a few pence of unit price, so a small change in price per nappy moves the yearly total by a surprising amount.
Enter nappies used per day, price per nappy, wipes cost per day. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.