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Down Payment Calculator

Estimate a home down payment, resulting loan amount, and total cash needed at closing with either a percentage or custom amount.

Updated April 11, 2026
Free online tool
Planning and research use

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Why this page exists

Down payment questions usually turn into two separate planning questions: how much cash to bring now and how much loan to carry later. This calculator helps you answer both by turning the home price into a down payment amount, a loan amount, and a rough cash-needed-at-closing estimate.

Interactive tool

Run the estimate

Enter your numbers and read the result first, then use the sections below to understand what affects the outcome.

Calculator

Down payment calculator

Estimate the down payment, loan amount, and cash needed at closing for a home purchase.

Result

$63,750

Estimated down payment and resulting loan amount based on the home price and input method you selected.

Down payment amount$63,750

Estimated loan amount$361,250

Estimated total cash needed at closing$73,550

Effective down payment percentage15.00%

This estimate uses a down payment rate of 15.00%.
A larger down payment reduces the estimated loan amount directly, which can lower monthly financing cost later.
Adding closing costs pushes the total upfront cash target near $73,550.

This is a planning estimate only. Actual lender rules, prepaid items, and closing details can change the cash required.

Planning note

Last updated April 11, 2026. Use this tool to compare scenarios and plan ahead, then confirm important details with the lender, employer, insurer, contractor, or other qualified provider involved in the final decision.

How it works

What the calculator is doing

Enter the home price and choose whether you want to set the down payment with a percentage or a custom dollar amount.

Add estimated closing costs if you want to see a fuller upfront cash target.

The calculator shows the down payment amount, estimated loan amount, and total cash needed at closing under the assumptions entered.

Understanding your result

The down payment matters twice: it changes how much cash you need before closing and how much you borrow afterward. Seeing both numbers together helps buyers decide whether to save longer, adjust the home price, or change the financing plan.

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Examples

Ways people use this tool

Example scenarios help turn a quick estimate into a more useful comparison or planning step.

Compare 10% and 20% down

Use the percentage mode to see how much the loan amount changes between two common down payment targets.

Check a fixed savings amount

Switch to custom amount mode if you already know how much cash you want to put down.

Add closing costs to get a fuller cash target

This helps separate the question of what you can borrow from the question of how much cash you need ready at closing.

When to use it

Good times to run this calculator

Use this calculator when you are saving for a home and need to separate the down-payment question from the monthly-payment question.

Run it again when comparing percentage targets against a fixed cash amount so you can see what each option does to the loan and the upfront cash need.

Assumptions and limitations

The calculator focuses on down payment, resulting loan amount, and optional closing costs, so it does not fully model PMI, taxes, insurance, or lender qualification rules.

The cash-needed result is only as complete as the closing-cost assumption. If those costs are understated, the true upfront requirement can still be higher.

Common mistakes

Avoid the usual input mistakes

Focusing only on the down payment percentage can hide how much closing costs still raise the total cash needed before closing.

Using every available dollar for the down payment without preserving a post-close cushion can make homeownership more fragile after move-in.

Practical tips

Run one version with the cash you have today and another with the percentage you hope to reach so you can see whether the gap is mostly a savings problem or a home-price problem.

Pair this with a mortgage calculation right away because the best down payment amount is the one that improves the loan without draining every reserve.

Worked example

Walk through a realistic scenario

A worked example shows how the estimate behaves when the inputs resemble a real planning decision.

Compare a percentage target against current cash savings

A buyer wants to know whether the current savings are enough to shop now or whether waiting for a larger down payment changes the financing picture meaningfully.

1. Run the home price using the current cash amount as a custom down payment and review the resulting loan amount and total cash needed.

2. Switch to a higher percentage target to see how much more cash would be required and how much the loan amount would fall.

3. Compare the two versions to judge whether waiting to save more changes the plan enough to matter.

Takeaway: The useful decision is not only how much to put down, but whether the added cash meaningfully improves the financing outcome without weakening reserves.

FAQ

Common questions

What happens if I use a custom amount instead of a percentage?

The calculator treats the custom amount as the full down payment and then shows the effective down payment percentage based on the home price.

Does total cash needed at closing include closing costs?

Yes. When closing costs are entered, the calculator adds them to the down payment to estimate total upfront cash needed.

Can the down payment be larger than the home price?

No. If the amount entered is higher than the home price, the result is capped at the purchase price so the loan amount does not go negative.

Related tools

Keep comparing

Use mortgage, affordability, and property-tax tools next when you want to see how the chosen down payment changes the real monthly housing cost.

Closing-cost and budget tools help once the loan amount looks workable and the next question is whether the upfront cash fits your broader plan.

Home ToolsUpdated April 11, 2026