About the Deposit Amount Calculator
Upfront deposit for a project or order as a percentage of the total, and the balance due on completion.
Also known as: project deposit, upfront payment, retainer deposit.
How to use this calculator
- Enter project total, deposit.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
Deposit = total × %
Worked example
Using the values pre-filled in the calculator above:
- Project total = 6,000
- Deposit = 30 %
the calculator returns:
- Deposit: 1,800
- Balance on completion: 4,200