Editorial Lead, Personal Finance
Convert a fraction (numerator / denominator) into its decimal value and a percentage.
Estimates the value of a real expansion option as the excess of incremental NPV from expansion over the expansion invest...
Project the total cost of renting vs. buying over your planned stay, including mortgage interest, maintenance, home appr...
Compute the asset turnover ratio — sales generated per dollar of assets: revenue ÷ average total assets. Higher ratios s...
Estimate the number of fairy lights a Christmas tree needs based on tree height and the desired density (looks-good 100/...
Work out how much a future amount is worth today, discounted at a chosen rate.
Compute your credit utilization ratio across up to four credit cards (sum of balances / sum of limits). Reports per-card...
Solves Ohm's Law for voltage, current, resistance, and power given any two of the four electrical quantities.
Compute the per-share purchase price, total discount, and immediate-sale profit on an Employee Stock Purchase Plan with...
Compute the bond-equivalent yield (a.k.a. investment yield) of a US Treasury bill, using the 365-day convention and Pric...
Compute the water volume of a rectangular aquarium from its inner dimensions, then convert to litres and US gallons. Vol...
Compute the equivalent annual cost (or annuity) of a project — the constant per-year cash flow that has the same present...
Needs, wants, and savings at 50/30/20 is a starting point — not a rulebook. Here is how to adapt it when your life doesn't fit neatly into t...
Nadia Almasri
The same $250 a month looks unremarkable for a decade and then suddenly dominates the chart. Here is why compounding behaves that way.
Nadia Almasri
A calm, jargon-free walkthrough of what actually drives your monthly mortgage payment — and how to make the number smaller.
Nadia Almasri
We pulled usage data across our 30 most-visited calculators to understand how readers actually use consumer finance tools. Findings, caveats...
Nadia Almasri