For anyone shopping for a car in the next 6 months
Buying a car toolkit
Cars are the second-largest purchase most people make and the one where the dealer controls the framing. These calcs let you show up with your own numbers — payment, total cost, and what the car will be worth when you sell it.
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Car Affordability Calculator
Start with what your budget supports before the salesperson does — 10-15% of take-home for the payment is the rough ceiling.
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Lease vs Buy Calculator
Lease = lower monthly, nothing at the end. Buy = higher monthly, an asset at the end. This tells you which one is cheaper over your holding period.
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Auto Loan Calculator
Given price, down payment, rate, and term, this is the actual monthly payment. Bring it to the dealer, not the other way around.
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Vehicle Depreciation Calculator
A new car loses 20-30% of its value the first year. Model resale before you sign — the true cost of ownership is price − resale, not just the loan.
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Car Insurance Premium Calculator
Insurance is a fixed monthly you'll pay for the entire ownership. Cheaper to get an estimate now than at the dealership counter.
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Save your progress
Each calculator remembers your last inputs on your device, so you can leave and come back to any of these without losing your numbers. Every step also has a Share this calculation button that copies a link with your inputs baked in — useful for talking things through with a partner or advisor.