Rewards calculator
What each card pays you back in a year, minus every fee: plan, FX, per-purchase, small-purchase and top-up. Pick where you live: a card that bills in your currency charges no FX fee at home. Then compare tiers across up to three cards, or see one card line by line.
Tiers of Jupiter Card and KAST Card at $1,000 a month · best for you: Jupiter Referral boost ($468 a year)
| Card · tier | Rewards / yr | Plan and card fees / yr | FX cost / yr | Purchase fees / yr | You keep / yr | Notes |
|---|---|---|---|---|---|---|
| $480 | $0 | −$12.00 | $0 | $468 | Needs: 2 qualifying referrals in the previous month | |
Jupiter CardStandardFree | $240 | $0 | −$12.00 | $0 | $228 | |
KAST CardStandardFree | $180 | $0 | −$24.00 | −$2.40 | $154 | |
KAST CardPremium$1,000 a year | $240 | −$1,000 | −$24.00 | −$2.40 | −$786 | |
KAST CardPrivate$10,000 a year | $360 | −$10,000 | −$24.00 | −$2.40 | −$9,666 |
Which one pays off at your spend
| Monthly spend | Best tier | You keep / yr |
|---|---|---|
| $250 | Jupiter Referral boost | $117 |
| $500 | Jupiter Referral boost | $234 |
| $1,000 | Jupiter Referral boost | $468 |
| $2,000 | Jupiter Referral boost | $936 |
| $3,000 | Jupiter Referral boost | $1,164 |
| $5,000 | Jupiter Standard | $1,140 |
| $10,000 | KAST Premium | $1,136 |
Jupiter Card
- Referral boost (free) beats Standard (free) once you spend $1 a month, until $5,000 a month. Needs: 2 qualifying referrals in the previous month.
KAST Card
- Premium ($1,000/yr) beats Standard (free) once you spend $5,667 a month.
- Private ($10,000/yr) beats Premium ($1,000/yr) once you spend $75,001 a month.
Worked out with all your other settings unchanged. Staking or lockups a tier needs are not counted as a cost; their value today is shown next to them. Compare these side by side: perks, caps and how to qualify
Missing figures are counted as zero and flagged in the notes. Spending caps, spend bands and small-purchase limits are applied where the issuer publishes them. Top-up fees are worked out on everything you load, including the money that goes on fees. How the calculator works. To see one purchase line by line, try the swipe receipt.