What is the monthly payment on a $100,000 mortgage at 8% for 30 years?
Answer
$734/month
Principal & interest onlyTotal interest over 30 years: $164,155Total cost: $264,155
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How We Calculated This
M = P × [r(1+r)^n] / [(1+r)^n - 1]
P=$100,000, r=8%/12=0.6667n=360. M = $734
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Calculated using verified formulas. Last updated March 2026.