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

Attic Insulation Calculator

Compute the inches of insulation you need to add to reach a target attic R-value, given the insulation's R-per-inch and...

basic

12,650 4.6 1 min

Physics

Fiber Optic Numerical Aperture and Acceptance Angle Calculator

Calculates the Numerical Aperture (NA) and maximum acceptance angle of an optical fiber from the refractive indices of c...

basic

23,397 4.0 1 min

Finance / Loans

Personal Loan Calculator

Estimate the monthly payment, total interest, and total cost of a fixed-rate personal loan from principal, rate, and ter...

basic

17,244 4.9 1 min

Physics / Mechanics

Angular Momentum & Moment of Inertia Calculator

Calculates angular momentum, rotational kinetic energy, and angular acceleration of a rotating body from moment of inert...

basic

5,377 4.5 1 min

Finance / Investing

Dividend Discount Model (Gordon) Calculator

Compute the fair value of a stock using the Gordon Growth (constant-growth) dividend discount model: P = D₁ / (r − g), w...

basic

16,695 4.4 1 min

Statistics / Descriptive

Covariance from Paired Sums Calculator

Calculates sample covariance Cov(X,Y) = [ΣXY − (ΣX)(ΣY)/n] / (n−1) and population covariance / (n). Also shows the sign...

basic

16,518 4.8 1 min

Physics

Driven Harmonic Oscillator Resonance Amplitude Calculator

Compute the steady-state amplitude of a driven, damped harmonic oscillator with driving force F₀cos(ωt) and damping γ =...

basic

9,404 4.9 1 min

Finance

Information Ratio Calculator

Compute the information ratio — a measure of an active portfolio's excess return per unit of tracking risk taken vs its...

basic

24,099 4.3 1 min

Everyday Life

Water Heater Sizing Calculator

Estimate the tank size (gallons) and recommended first-hour rating for a household water heater, based on the number of...

basic

3,352 4.9 1 min

Physics

Wave Plate Retardation and Polarization State Calculator

Calculates the phase retardation Γ introduced by a birefringent wave plate. Quarter-wave (λ/4) plates have Γ = π/2 rad;...

basic

12,401 4.0 1 min

Finance

Net Working Capital & Current Ratio Calculator

Calculates net working capital and the current ratio from current assets and current liabilities to assess short-term li...

basic

23,946 4.5 1 min

Finance

CAPM Expected Return Calculator

Compute the expected return on an asset using the Capital Asset Pricing Model: E(R) = Rf + β · (Rm − Rf).

basic

16,747 4.5 1 min

Showing 313 to 324 of 384 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

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

Attic Insulation Calculator

Fiber Optic Numerical Aperture and Acceptance Angle Calculator

Personal Loan Calculator

Angular Momentum & Moment of Inertia Calculator

Dividend Discount Model (Gordon) Calculator

Covariance from Paired Sums Calculator

Driven Harmonic Oscillator Resonance Amplitude Calculator

Information Ratio Calculator

Water Heater Sizing Calculator

Wave Plate Retardation and Polarization State Calculator

Net Working Capital & Current Ratio Calculator

CAPM Expected Return 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