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Down payment calculator

Down Payment Calculator

Compare common down payment levels and see how each changes cash needed, loan amount, LTV, PMI exposure and payment impact.

Calculator

Calculator

Result$0Enter values to calculate.
Educational estimate: Not a mortgage quote. Taxes, insurance, PMI, HOA, APR and lender fees can change real costs.

Down payment planning guide

A down payment affects both upfront cash and the long-term loan. Smaller down payments preserve cash but increase loan amount and may add PMI.

Worked example

On a $420,000 home, 3% down is $12,600, 10% down is $42,000 and 20% down is $84,000. The loan amount and monthly payment change with each option.

Methodology

The calculator multiplies home price by each down-payment percentage, subtracts the result from price to estimate loan amount, then estimates payment and LTV.

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Sources and review

Last reviewed: August 16, 2026.

Frequently asked questions

Is this professional mortgage advice?

No. DailyToolDesk provides educational estimates, not lending, tax, legal or investment advice.

Why can lender numbers differ?

APR, points, escrow rules, insurance quotes, property tax, PMI, lender fees and closing timing can change actual results.

Which tool should I use next?

Use the related calculator that matches the next decision: amortization for schedules, extra payment for payoff acceleration, PMI for insurance cost, or rent vs buy for housing path comparison.