Ticks first, dollars second
R multiple is reward ticks divided by risk ticks. Ten ticks of risk and twenty of reward is 2R, on any contract. The dollars change with the tick value and the contracts. MES at $1.25 with two contracts: risk dollars are 10 × 1.25 × 2 = $25, and the target is $50. The same ticks on ES are $250 of risk and $500 at the target, because one ES tick is $12.50.
A risk reward calculator that starts from stock shares will hide that jump. Type the tick value from the tick table, or type the one you already know. Fees are not subtracted. A 2R target that pays $50 and costs $4 in fees is not 2R in the account. Run the fee calculator if the fee is large next to the target.
Nothing here places the order. The numbers are the plan. The fill is whatever the platform printed. Replay in the journal walks those fills afterward. It does not check whether you hit the target you typed on this page.
Keep the stop and the target in ticks when the product is a future, then convert once. A 12-tick stop and an 18-tick target is 1.5R before any dollar sign appears. On MYM, one tick is $0.50, so one contract risks $6 and pays $9 at the target. On YM the same ticks are $60 of risk and $90 at the target, because the mini tick is $5. Writing the plan in dollars first, then discovering you meant the mini, is how a small account takes a ten-times stop. The tick table is the conversion. This form is the ratio. MCL is the small crude contract: one tick is $1, so that same 12-tick stop is $12 a contract and the 18-tick target is $18. CL multiplies both by ten.