BedrockCalc — bedrockcalc.com
Scenario link:
Debt-to-Income Ratio Calculator
Lenders read your debt-to-income ratio before they read anything else. This debt-to-income ratio calculator gauges your front-end and back-end DTI against the 28% and 36% lender limits on a color-coded scale, then solves how much debt or income moves you to a target.
See how this works on a $6,500-a-month budget — 3 real examples
Housing cost (front-end)
Other monthly debt (back-end)
Target-DTI solver
Back-end DTI (all debt)
0%
Front-end DTI (housing)
0%
Total monthly debt
$0
Gross monthly income
$0
Lender limits: 28%/36% conventional (front/back) · 31%/43% FHA ·41% VA back-end. The solid pointer is back-end DTI; the outlined pointer below is front-end.
Where your gross income goes
How your front-end and back-end DTI are calculated
Both ratios are gross monthly obligations divided by gross monthly income, expressed as a percent:
Front-end DTI = housing cost / gross monthly income × 100
Back-end DTI = (housing cost + other debt) / gross monthly income × 100
Housing = rent/mortgage + property tax + insurance + HOA
Gross income is your pay before taxes; an annual salary is divided by 12. The target-DTI solver works backward from the same ratio: the maximum monthly debt allowed at your chosen back-end target is gross monthly income × target%, and the room you have left is that figure minus your current total debt (never below zero). If you are already above the target, the same arithmetic tells you how many dollars of monthly debt to trim. The 28/36, 31/43 and 41 figures shown on the gauge are widely published conventional, FHA and VA underwriting benchmarks — this tool reports ratios only and does not predict loan approval, which every lender decides on credit, assets and program rules beyond DTI.
From 44% to comfortable, two different ways
A $6,500 gross month carrying $2,860 of debt payments sits at 44% — over every lender line. Two levers can move it.
Where the numbers sit today
back-end DTI44.0%
- $2,860 of monthly obligations against $6,500 of gross income is a 44% back-end ratio.
- Housing alone is $2,120 — a 32.6% front-end ratio, past the 28% benchmark too.
- A 36% target allows $2,340 of monthly debt; this budget runs $520 over.
Nothing here is missed or late — the ratio is about capacity, not behavior.
Load this example (opens in a new tab)Lever one: retire two payments
back-end DTI36.0%
- Clearing the $400 car payment and $120 of card minimums removes exactly $520 a month.
- Total debt lands on $2,340 — precisely the 36% line at this income.
- The front-end ratio does not move; housing is untouched at 32.6%.
Paying off two mid-size debts, not the mortgage, is what moves this gauge.
Load this example (opens in a new tab)Lever two: a bigger denominator
back-end DTI35.8%
- The same $2,860 of debt against $8,000 of gross income reads 35.8%.
- An extra $1,500 a month — an $18,000 raise — clears the 36% bar without repaying anything.
- The front-end ratio falls to 26.5%, back inside the 28% benchmark.
DTI is a fraction: income growth moves it exactly as surely as debt payoff does.
Load this example (opens in a new tab)Illustrations only, not financial advice. Your own rate, taxes and insurance will differ — check with a qualified financial advisor before acting on any of this.
Reading your DTI, in plain English
- Back-end is the headline number. Lenders qualify you mostly on total-debt DTI; the front-end (housing-only) ratio matters most on the housing side of the 28/36 rule.
- The 28/36 rule is the anchor. Housing under 28% and all debt under 36% is the classic conventional comfort zone — this front-end DTI calculator marks both limits on the gauge.
- FHA and VA give more room. FHA commonly allows 31/43 and the VA uses a 41% back-end guideline, so a DTI that’s high for a conventional loan may still fit another program.
- Only minimum debt payments count. Credit-card minimums, student, auto and other loans — not utilities, groceries or subscriptions. Overstating debt makes your DTI look worse than a lender would score it.
- Two dials move it. Lower monthly debt or higher gross income. The target-DTI solver shows the exact dollar move to reach 36%, 43% or any figure you pick.
Related calculators
Frequently asked questions
What is a good debt-to-income ratio?
As a rule of thumb, a back-end DTI of 36% or below is considered comfortable, 36–49% is “room for improvement,” and 50% or more is a red flag. The classic conventional benchmark is the 28/36 rule — housing under 28% of gross income and all debt under 36%. FHA guidelines allow up to 31/43 and the VA uses a 41% back-end guideline, though actual limits vary by lender and program.
What is the difference between front-end and back-end DTI?
Front-end DTI counts only your housing cost — rent or your mortgage payment plus property tax, insurance and HOA dues — divided by gross monthly income. Back-end DTI adds every other monthly debt payment (credit cards, student loans, auto loans and other loans) on top. Back-end is the number lenders lean on most, since it captures your full obligations.
What counts as debt in a DTI calculation?
Only recurring minimum debt payments count: your rent or mortgage (with tax, insurance and HOA), credit-card minimums, student loans, auto loans, personal loans and similar obligations. Everyday costs like utilities, groceries, phone bills, insurance premiums that aren’t escrowed, and streaming subscriptions are not debt and are excluded.
Does DTI use gross or net income?
DTI uses gross income — your pay before taxes and deductions. On a $78,000 salary that is $6,500 a month. Lenders standardize on gross income so the ratio is comparable across borrowers, which is why your DTI looks lower than it would against take-home pay.
What DTI do mortgage lenders usually want to see?
Conventional loans target a back-end DTI around 36%, though automated underwriting often approves up to 43–45% and sometimes to 50% with strong compensating factors like reserves or a high credit score. FHA commonly allows 43% and higher through its system, and the VA uses a 41% guideline. These are underwriting guidelines, not guarantees — this calculator is for planning only.
How can I lower my debt-to-income ratio?
Two levers move DTI: shrink monthly debt or grow gross income. Paying down or consolidating high-payment balances, avoiding new loans before applying, and refinancing to a lower payment all reduce the numerator. A raise, a second income or documentable side income raises the denominator. Use the target-DTI solver above to see exactly how many dollars either move takes.
Disclaimer: these calculators are educational tools, not financial advice. They model your inputs with published formulas, but they cannot know your full situation — for decisions with real stakes, talk to a qualified professional. Formulas and defaults last reviewed .