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

Everyday Life

Generator Sizing Calculator

Estimate the generator size you need from total running watts and the largest motor's starting (surge) wattage. Picks th...

basic

22,714 4.1 1 min

Health

Wells Score DVT Probability Calculator

Estimates pre-test probability of DVT using the Wells scoring system based on clinical findings and risk factors.

basic

22,650 4.9 1 min

Finance

Quick Ratio (Acid-Test) Calculator

Compute the quick ratio (acid-test) — a stricter liquidity measure that excludes inventory: (cash + marketable securitie...

basic

15,329 4.9 1 min

Finance / Retirement

Lifetime Social Security Benefit Calculator

Estimate the lifetime cumulative Social Security benefit from your monthly benefit at the claim age, your expected age o...

basic

8,283 4.2 1 min

Finance

Bond Coupon Rate Calculator

Compute the coupon rate of a bond — the annual coupon income expressed as a percentage of the face value — from the per-...

basic

11,380 5.0 1 min

Finance / Loans

APR Calculator

Convert a loan's fees and interest rate into an annual percentage rate — the rate that actually reflects the cost of bor...

basic

14,132 4.9 1 min

Finance / Budgeting

Restaurant Tip with Tax Calculator

Compute a restaurant tip on either the pre-tax subtotal or the post-tax total, the all-in grand total, and the per-perso...

basic

24,807 4.4 1 min

Finance

401(k) Employer Match Calculator

Compute the employer match you earn on a 401(k) given your salary, your contribution percentage, and the match formula (...

basic

1,290 5.0 1 min

Physics

Hydrogen Atom Energy Level from Principal Quantum Number Calculator

Calculates the energy level E_n = −13.6 eV / n² for hydrogen and the energy of a photon emitted/absorbed in a transition...

basic

23,918 4.6 1 min

Sports / Running

Running Heart Rate Training Zones from Max HR Calculator

Calculates the 5 Karvonen heart rate zones from HRmax (or age-predicted HRmax = 220 − age): Z1 50–60%, Z2 60–70%, Z3 70–...

basic

11,082 4.8 1 min

Finance

Investment Fee Break-Even Years Calculator

Compute how many years it takes for the cost drag of a high-fee mutual fund to outweigh its (assumed) higher gross retur...

basic

24,224 3.9 1 min

Everyday Life

Lawn Fertilizer Calculator

Compute how many pounds of bagged fertilizer to spread on a lawn for a target nitrogen rate (lb of N per 1000 ft²) given...

basic

612 4.9 1 min

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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

May 15, 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

Apr 26, 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

Feb 12, 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

Jan 23, 2026 3 min

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Browse categories

Nadia Almasri

Generator Sizing Calculator

Wells Score DVT Probability Calculator

Quick Ratio (Acid-Test) Calculator

Lifetime Social Security Benefit Calculator

Bond Coupon Rate Calculator

APR Calculator

Restaurant Tip with Tax Calculator

401(k) Employer Match Calculator

Hydrogen Atom Energy Level from Principal Quantum Number Calculator

Running Heart Rate Training Zones from Max HR Calculator

Investment Fee Break-Even Years Calculator

Lawn Fertilizer Calculator

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

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

The State of Consumer Calculators in 2026: A Short Report

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