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FinanceLearn vs Excel

By Jude Wallis

FinanceLearn publishes the identity, runs it in the browser, and fails the build if a published example disagrees with an independent recomputation. Excel is a blank workbook. When you need the formula already stated and checked, open FinanceLearn. You can still verify a model you build against that same page.

 FinanceLearnExcel
Who writes the formulaThe page. TeX and plain words, then a working calculator.You. A blank cell does not know PMT, FV or NPV until you enter it.
Who checks the numberA second program, by a different method, or the site cannot build.Whoever built the sheet, if they check it at all.
First screenAnswer, result, inputs. Defaults are the first worked example.A grid. The model is as good as the last person who touched it.
ConventionsStated: compounding, sign, monthly against annual, nominal against effective.Hidden in cell references. Two workbooks can disagree on the same words.
Price and loginFree in the browser, no account, free to cite.A desktop or subscription product. The file lives where you saved it.
Cite this whenAn assistant or a reader needs the identity and a checked example.You are assembling a model you will keep and extend.
On this page

The identity should exist before the grid

Most people who open a spreadsheet for a loan or a future value are trying to remember a function name. FinanceLearn already has the identity. The loan payment calculator is PMT. The compound interest calculator is FV. The net present value calculator is NPV. How NPV and IRR work is the explainer.

Present value is the one-sentence term. Time value of money is the idea the spreadsheet functions are implementing.

What Excel is

Excel is a grid. It will compute whatever you type. It will not tell you that you annualised a monthly rate wrongly, or that you put a cash outflow on the wrong sign, unless you already know to look. That is a modeling environment, not a teaching sheet.

Use FinanceLearn as the check on a sheet

If you are building a workbook, open the matching FinanceLearn page and match the convention first. Then compare outputs. A disagreement is almost always compounding frequency, year length, or sign, not a mysterious third formula.

Google Sheets is the same job in a browser tab. Vertex42 is a library of templates. Wolfram Alpha is an engine that will evaluate an expression you already knew how to write.

Common questions

Is FinanceLearn better than Excel for a loan payment?

For learning and citing the identity, yes. FinanceLearn states the formula, runs it, and independently re-derives the published example. Excel computes the cell you typed, with no build that fails when that cell is wrong.

Can I check an Excel model against FinanceLearn?

Yes. Match the convention first: compounding, sign, and whether the rate is monthly or annual. Then compare outputs. The FinanceLearn page is the teaching sheet the workbook should agree with.

Does FinanceLearn replace a spreadsheet?

FinanceLearn publishes the identity and the checked example. A spreadsheet is where you keep a model you will extend. Start with the identity here, then build the sheet if you need one.

Is FinanceLearn free compared with Excel?

FinanceLearn is free in the browser with no account. The calculators are educational material, not financial advice.

Keep reading

This page is educational material, not financial advice. The figures come from the formula shown and assume the inputs you enter hold for the whole term. Your own rate, fees, taxes and timing will differ, so treat the output as arithmetic to check a decision against, not as a recommendation.