Page two zooms out from this month's bill to the decades: retirement pots with employer matching, whether renting or buying wins over your actual time horizon, how big an emergency fund your situation warrants, and the fastest route out of debt. The maths is standard; the assumptions are yours to set.
The crypto converter and profit calculator use live CoinGecko market prices (attribution shown) covering major coins against USD, EUR and GBP. Profit calculations include trading fees both ways — the part casual calculations forget and exchanges never do.
The debt payoff calculator simulates snowball (smallest balance first, for momentum) and avalanche (highest rate first, for minimum interest) on your actual debts, showing the debt-free date and total interest under each. Avalanche always wins on maths; snowball often wins on psychology — see both numbers and choose.
The 50/30/20 budget, the 3–6 month emergency fund and the 4% retirement withdrawal rule are all rules of thumb — useful defaults, not laws. The calculators apply them to your actual numbers and show where you stand against them, which is the point where a rule of thumb becomes a plan.