Credit Card Calculator

Other Finance

Credit Card Calculator

See the time and interest required to pay off a credit card balance.

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Formula

$$I_t = B_{t-1}\cdot r,\qquad P_t = \text{Payment} - I_t,\qquad B_t = B_{t-1}-P_t$$
Where
I_tmonthly interest
B_tbalance
P_tprincipal portion
rmonthly APR
tmonth index

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