Pip value = pip size × ounces per lot × lots. Lot size = (account × risk%) ÷ (stop in dollars × ounces per lot). Figures are for a USD account and exclude spread and swap.
About this calculator. The result is an educational estimate. Contract sizes, pip values, spreads, commissions and overnight financing differ by broker and by instrument, and fills can differ from the prices you model. Check your own account's specification before trading.