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 the author

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

Cash Conversion Cycle (DSO + DIO − DPO) Calculator

Calculates the cash conversion cycle CCC = Days Sales Outstanding + Days Inventory Outstanding − Days Payables Outstandi...

Basic

1,042 4.2 1 min

Finance / Mortgage

LTV Calculator

Compute the loan-to-value (LTV) ratio of a mortgage from the loan amount and the property's appraised value — used to de...

Basic

14,317 4.1 1 min

Finance / Investing

Real Rate of Return Calculator

Compute the real (inflation-adjusted) rate of return from a nominal return and an inflation rate, using the exact Fisher...

Basic

19,585 4.2 1 min

Finance

Operating Cash Flow Margin Calculator

Calculates operating cash flow margin as cash from operations divided by revenue, measuring cash profitability.

Basic

22,091 4.6 1 min

Sports

Sprint Interval Work-to-Rest Ratio Calculator

Calculates total sprint session volume: rest_time = work_time / ratio; total session = n_intervals × (work + rest). Comm...

Basic

18,828 4.5 1 min

Physics

Thin Lens Object Distance & Focal Calculator

Solves the thin lens equation to find image distance, magnification, and whether the image is real or virtual from objec...

Basic

5,604 4.7 1 min

Finance

EV vs Gas Vehicle TCO Calculator

Compare the 5-year total cost of ownership (TCO) of an electric vehicle vs an equivalent gasoline vehicle from purchase...

Basic

19,440 4.8 1 min

Finance / Retirement

Retirement Savings Calculator

Estimate retirement balance at age 65 based on current savings, contributions, and expected return.

Featured Basic

1,797 4.2 1 min

Finance / Loans

Rule of 78 Unearned Interest Calculator

Compute the unearned-interest rebate on a fixed-term loan if you prepay it early under the Rule of 78s, used by some aut...

Basic

16,675 4.4 1 min

Finance

Net Working Capital Calculator

Compute net working capital — short-term liquidity in absolute dollars: NWC = current assets − current liabilities. Posi...

Basic

20,620 4.0 1 min

Finance / Budgeting

Break-Even Calculator

Find the number of units you need to sell to cover your fixed costs, given the price per unit and the variable cost per...

Basic

18,070 4.2 1 min

Finance

Stock Beta from Covariance and Variance Calculator

Compute a stock's beta directly from the covariance of its returns with market returns and the variance of the market: β...

Basic

21,620 4.3 1 min

Showing 109 to 120 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

Cash Conversion Cycle (DSO + DIO − DPO) Calculator

LTV Calculator

Real Rate of Return Calculator

Operating Cash Flow Margin Calculator

Sprint Interval Work-to-Rest Ratio Calculator

Thin Lens Object Distance & Focal Calculator

EV vs Gas Vehicle TCO Calculator

Retirement Savings Calculator

Rule of 78 Unearned Interest Calculator

Net Working Capital Calculator

Break-Even Calculator

Stock Beta from Covariance and Variance 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