Calculator toolkits
Not “which calculator do I need” — “help me work through this decision”. Each toolkit walks you through a real-world job with the relevant calcs in the order they matter, plus one sentence of framing for each step.
- For first-time home buyers
First-time home buyer toolkit
The full sequence: how much house can you afford, what your monthly payment will be, whether to rent or buy, and every cost around the mortgage itself.
5 calculators · in order - For anyone with 10+ years until retirement
Retirement planning toolkit
Model the trajectory: how much you'll have, whether it's enough, whether you can retire early, and how withdrawals will hold up over decades.
5 calculators · in order - For anyone with more than one loan or credit card balance
Debt-payoff plan toolkit
From "how bad is it" to a specific month-by-month plan: consolidation, avalanche vs snowball, and the cost of dragging one extra payment.
5 calculators · in order - For freelancers, contractors, and 1099 workers
Freelancer & self-employed tax toolkit
The four things every 1099 worker actually has to compute: self-employment tax, quarterly estimated payments, hourly-rate math that clears both, and the total tax bill.
4 calculators · in order - For anyone shopping for a car in the next 6 months
Buying a car toolkit
What you can actually afford, whether to lease or buy, the monthly payment math, and the depreciation cost most people ignore.
5 calculators · in order - For parents 5-18 years out from their kid starting college
College savings plan toolkit
How much college will actually cost, what a 529 plan grows to, whether loans or savings do the heavier lift, and how much the loans will really cost.
5 calculators · in order - For founders in year 0 or year 1
Small business startup toolkit
The financial questions every founder answers eventually: unit economics, runway, breakeven volume, and the real cost of a first hire.
5 calculators · in order - For swimmers logging training and prepping for meets
Swim training plan toolkit
Pace, stroke rate, distance conversions and pool chemistry — the calcs that show up in every serious swimmer's training log.
5 calculators · in order - For fantasy football managers running standard, dynasty or DFS
Fantasy football season toolkit
Draft value, waiver FAAB bidding, trade fair-value, and playoff odds — the calcs that move league standings week to week.
5 calculators · in order - For anyone with a garage full of cans, bottles or old electronics
Recycling & scrap value toolkit
What your cans, bottles, cardboard and old electronics are actually worth — priced against current scrap and container-deposit rates.
5 calculators · in order