Should I pay this fare with points or cash?
Points vs Cash Calculator
Enter the cash fare, the award's taxes and fees, and the points required to get cents per point and a points-or-cash verdict against your own baseline.
Points math calculators
5 free interactive tools — the same arithmetic as the worked guides, with your numbers in the inputs. Every tool shows its formula, and every pre-filled default is a labeled hypothetical example, never a live price or valuation.
Is this buy-miles promotion actually a deal?
Mile Sale Break-Even Calculator
Enter a buy-miles sale's price per mile, bonus percentage, and purchase taxes to get the effective cost per mile and compare it against the redemption value you expect.
How much does this transfer bonus actually save me?
Transfer Bonus Calculator
Enter an award's price in partner miles and the transfer bonus percentage to see how many of your points the award really costs, how many the bonus saves, and the effective cents-per-point uplift.
What does hoarding this balance cost me per year?
Devaluation Drag Calculator
Enter a points balance, a conservative value per point, and an assumed annual devaluation rate to see the yearly dollar drag and a year-by-year erosion table.
Is this “free” award actually cheaper than the cash ticket?
Award True-Cost Comparer
Enter the cash ticket price, the award's taxes and fees, the points required, and your value per point to compare the award's true all-in cost against just paying cash.
Tools run the math; guides show it
Each calculator implements a formula from a worked guide, where the same arithmetic is written out step by step with its assumptions and failure modes. If a verdict surprises you, read the paired guide linked on the tool’s page — then re-run the tool with today’s numbers from the actual checkout screens.