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READY TO USE

Loan payment calculator

Choose which of four loan values to calculate. The selected field locks automatically.

No login or upload
FOUR INPUTS · ONE SELECTED RESULT

Choose what to calculate

Select the radio button beside the value you want calculated. That field locks; the other three stay editable.

Select the loan value to calculate
Enter a value
$
Enter a value
%
Enter a value
years
Calculated field
$

The monthly payment field is locked. Enter the other three values.

This is a functional layout prototype. The calculation formulas are intentionally not connected yet.

CALCULATION SETUP
VALUE TO CALCULATE Monthly payment Pick a different radio button to change the selected output.
◉1 locked fieldReserved for the calculated answer
✎3 editable fieldsType your known loan values
WHAT WILL HAPPEN

Enter the loan amount, interest rate, and loan term. Monthly payment will be calculated later.

No loan calculations are running in this prototype.
Amortization Schedule tabThe schedule remains a separate tab. We'll connect it after the four-variable calculator is finished.

THE EXCEL SIDE OF THINGS

Excel is powerful.
Make it work harder.

From a quick spreadsheet cleanup to a custom VBA macro, TheMightyMacro is also a home for practical Excel solutions.

The online tools are free. Custom-built Excel automation is a separate, paid service.

Explore custom macro services
WHAT CAN A MACRO DO?
01

Clean and reorganize messy data

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02

Automate repetitive reports

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03

Build custom workbook workflows

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04

Fix or improve existing VBA

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Have a spreadsheet problem?Custom project inquiries opening soon.

WHY THIS EXISTS

Useful beats complicated.

Some problems need powerful software. Others just need a good little tool that gets the job done. TheMightyMacro is here for the second kind — with an extra soft spot for spreadsheets.

Our current calculators and text tools run locally in your browser. We don't ask you to create an account or upload your numbers to our servers.

KEEP THE TOOLBOX FREE

A little support goes
a long way.

The tools are free to use. No paywalls, no guilt trips. If something here saved you time, an optional contribution helps keep the toolbox growing.

Donation option coming soon.