Runs fully in your browser. Inputs stay on your device. See recent fixes on changelog.
Months Between Dates Calculator
Calculate the number of months between two dates.
FreeRuns in browsermonths between datesmonth count
Cmd/Ctrl+Enter Primary actionCmd/Ctrl+Shift+L Load sampleCmd/Ctrl+Shift+X Clear/resetCmd/Ctrl+Shift+C Copy result
About Months Between Dates Calculator
Calculate the number of months between two dates online for free. See whole months, years-and-months breakdown, and fractional month values for precision. Uses precise mathematical formulas with clear, formatted results. Input validation prevents errors and guides correct usage, ensuring reliable computations every time. Everything runs client-side in your browser for maximum speed and privacy — no data is sent to any server, and no signup is required.
Related tools: Days Between Dates Calculator, Date Difference Calculator, Add Days to Date
How to Use Months Between Dates Calculator
- Fill in the required input fields with your values.
- Click Calculate to run the computation.
- View the results below the form.
Frequently Asked Questions
What is Months Between Dates Calculator?
Calculate the number of months between two dates online for free. See whole months, years-and-months breakdown, and fractional month values for precision.
How are calculations performed?
Calculations use precise mathematical formulas implemented in JavaScript. The underlying formulas are well-documented and validated against known reference values to ensure correctness.
Can I use decimal values?
Yes, all input fields accept decimal numbers with full floating-point precision. You can enter values with as many decimal places as you need and the tool will compute accurate results.
Are the formulas used shown?
Where applicable, the tool displays the formula or methodology used so you can verify the computation yourself. This transparency helps you understand and trust the results.
Is Months Between Dates Calculator free to use?
Yes, this calculator is completely free to use. No account or signup is needed, and all computations run locally in your browser without any restrictions.
Is my data safe when using Months Between Dates Calculator?
Absolutely. Every calculation runs locally in your browser. No input data is transmitted to any server, ensuring your numbers stay private.