Featured contributor BSc Economics; CFA Level II candidate; 10+ years in consumer-finance publishing.

Nadia Almasri

Editorial Lead, Personal Finance

0 calculators 0 articles Member since Jun 2026

About

Nadia leads the personal finance desk and has spent over a decade writing consumer-facing explainers for banks, fintechs, and independent publications. She is obsessive about sourcing, formulas, and making the math feel approachable without dumbing it down.

She reviews every loan, mortgage, and budgeting calculator before it ships and is responsible for the editorial checklists the rest of the team uses.

Areas of expertise

Mortgages Consumer loans Budgeting Retirement planning

Education & credentials

BSc Economics — King's College London
MBA — IE Business School

Finance / Mortgage

Mortgage Affordability Calculator

Estimate the largest mortgage and house price you can afford from gross income, monthly debts, down payment, and a targe...

basic

6,779 4.4 1 min

Sports

Vertical Jump Flight Time Calculator

Calculates vertical jump height from hang time (or vice versa) using kinematics, plus the average power output during th...

basic

11,964 4.8 1 min

Everyday Life

Dog Breed Lifespan & Human Age Equivalent

Converts dog age to approximate human equivalent years using the non-linear formula (log-based) from a Nature Aging stud...

basic

1,817 3.9 1 min

Finance / Retirement

Safe Withdrawal Rate Calculator

Compute how much annual income a retirement portfolio can support at a chosen safe withdrawal rate (commonly 4%).

basic

23,454 4.7 1 min

Sports

Cross-Country Skiing Speed & Effort Calculator

Estimates power output and aerobic demand of cross-country skiing from speed, body mass, and terrain gradient.

basic

1,569 3.9 1 min

Finance / Investing

Binomial Option Pricing One-Step Tree Calculator

Prices a European call/put option using a one-step binomial tree. Up factor u, down factor d = 1/u, risk-neutral probabi...

basic

17,965 4.6 1 min

Finance

LTV:CAC Ratio and Payback Period Calculator

Calculates the LTV:CAC ratio (healthy if > 3:1) and the CAC payback period in months = CAC / (monthly revenue per custom...

basic

1,062 4.3 1 min

Finance / Budgeting

Budget Calculator

Split monthly take-home pay into needs, wants, and savings using the 50/30/20 rule.

basic

23,384 4.6 1 min

Finance

Return on Assets (ROA) Calculator

Calculates return on assets (ROA) as net income divided by total assets, expressing how efficiently a company uses its a...

basic

15,344 4.3 1 min

Finance

Plowback (Retention) Ratio Calculator

Compute the plowback (retention) ratio — the share of earnings retained for reinvestment after dividends: retention = 1...

basic

21,495 4.9 1 min

Finance / Budgeting

Profit Margin Calculator

Calculate the gross margin of a sale and find the selling price that hits a target margin given the cost of goods.

basic

7,245 4.5 1 min

Finance

Gold-to-Stock Ratio Calculator

Compute the gold-to-stock ratio (price of gold ÷ price of a stock index) — a classic relative-value indicator. A high ra...

basic

14,893 4.5 1 min

Showing 277 to 288 of 402 results

tutorial Finance

The 50/30/20 Rule, Used By Real People: A Budgeting Primer

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

Mar 16, 2026 3 min

explainer Finance

Compound Interest Is Slow Until It Isn't: What 20 Years of $250 a Month Actually Looks Like

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

Feb 6, 2026 3 min

guide Finance

How to Think About Your Mortgage: A Plain-English Guide

A calm, jargon-free walkthrough of what actually drives your monthly mortgage payment — and how to make the number smaller.

Nadia Almasri

Jan 9, 2026 3 min

report Finance

The State of Consumer Calculators in 2026: A Short Report

We pulled usage data across our 30 most-visited calculators to understand how readers actually use consumer finance tools. Findings, caveats...

Nadia Almasri

Nov 12, 2025 3 min

Best Free Calculator

Browse categories

Nadia Almasri

Mortgage Affordability Calculator

Vertical Jump Flight Time Calculator

Dog Breed Lifespan & Human Age Equivalent

Safe Withdrawal Rate Calculator

Cross-Country Skiing Speed & Effort Calculator

Binomial Option Pricing One-Step Tree Calculator

LTV:CAC Ratio and Payback Period Calculator

Budget Calculator

Return on Assets (ROA) Calculator

Plowback (Retention) Ratio Calculator

Profit Margin Calculator

Gold-to-Stock Ratio Calculator

The 50/30/20 Rule, Used By Real People: A Budgeting Primer

Compound Interest Is Slow Until It Isn't: What 20 Years of $250 a Month Actually Looks Like

How to Think About Your Mortgage: A Plain-English Guide

The State of Consumer Calculators in 2026: A Short Report