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Home, Property & Mortgages

Down Payment Calculator

Calculate the down payment and closing costs for a home and how many months of saving it will take to have the cash.

Your inputs

Results

Total cash needed

$92,000.00

Down payment
$80,000.00
Closing costs
$12,000.00
Resulting loan amount
$320,000.00
Months until you have enough
61

≈Estimate based on the stated model and assumptions

Inputs are never added to links for financial, salary or health calculators.

What this calculator does

The cash you need at closing is usually the down payment plus closing costs. This tool totals both and projects how long your savings plan takes to get there.

Formula and method

Cash needed = price × down% + price × closing% Each month: savings = savings × (1 + i) + monthly saving, until savings ≥ cash needed.

Worked example

Calculated by this tool with its default inputs:

Inputs

  • Home price: 400000 (any currency)
  • Down payment: 20 %
  • Closing costs (% of price): 3 %
  • Already saved: 20000 (any currency)
  • Monthly saving: 1000 (any currency)
  • Interest earned on savings (annual): 4 %

Results

  • Total cash needed: 92,000
  • Down payment: 80,000
  • Closing costs: 12,000
  • Resulting loan amount: 320,000
  • Months until you have enough: 61

How to read the results

A larger down payment lowers the loan and can avoid mortgage insurance, but takes longer to save.

Assumptions and limitations

  • Location-dependent costs (taxes, insurance, fees) are entered by you; the tool never assumes local rates.
  • Lenders may also require cash reserves after closing.

Financial results are estimates based on the inputs and assumptions shown. They are not financial advice; confirm figures with your lender, provider or a qualified adviser before making decisions.

Questions

Is 20 % down required?

No. Many loan programmes accept less, but 20 % commonly avoids private mortgage insurance on conventional loans.

Methodology and verification

Result type
Estimate based on the stated model and assumptions
Formula version
1.0
Automated verification
3 reference and validation test cases, checked against independently computed values. The site cannot be built if any of them fail.
Editorial review
Awaiting human editorial review. The explanation was drafted with AI assistance; the formula and examples are verified by the automated tests above.

Privacy

Everything you enter is calculated in this browser and is not sent to Numerith or anyone else. Because this calculator can involve personal financial or health details, your inputs are never added to share links or saved to history. Privacy policy