Finance & Business

57 calculators

Hourly to Annual Salary Calculator

Hourly rate × hours per week × 52 (simple, no tax).

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Tip Calculator

Bill amount, tip percent, and party size—tip, total with tip, and per person.

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Discount Calculator

Original price and percent off—sale price and savings.

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Trip Fuel Cost Calculator

Miles, MPG, and price per gallon—gallons used and trip fuel cost (US units).

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Mortgage Payment Calculator

Loan amount, annual rate, and years—estimated monthly principal & interest (excludes tax/insurance).

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Compound Interest Calculator

Principal, annual rate, years, and compounding periods per year—future value.

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Percentage Change Calculator

Old value vs new value—absolute change and relative percent change.

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Markup & Margin Calculator

Cost plus markup % on cost—selling price and margin % of selling price.

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Sales Tax Calculator

Pre-tax subtotal and tax rate—tax amount and total with tax.

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Simple Interest Calculator

Principal, annual rate %, and years—interest and total repayment.

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Break-Even Calculator

Fixed costs, variable cost per unit, and price—units needed to break even.

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Rent Affordability Calculator

Monthly income and max rent % of income—rule-of-thumb rent cap.

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Decimal Odds to Implied Probability

Enter decimal odds (e.g. 2.50)—naïve implied win % (no vig removed).

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Credit Card Payoff Estimator

Balance, APR, and fixed monthly payment—months to payoff and total interest (simplified).

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CAGR Calculator

Starting value, ending value, and years—compound annual growth rate %.

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Retirement Savings Calculator

Monthly contribution, nominal annual return %, and years—future value and total contributed.

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Inflation Calculator

Present value, annual inflation %, and years—future nominal value and multiplier.

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Car Loan Calculator

Principal, APR %, and term in months—monthly payment and total interest (amortizing).

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Max Loan from Payment

Affordable monthly payment, APR %, and years—estimate maximum loan principal.

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Electricity Cost Calculator

kWh used and price per kWh—total electricity cost.

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Unit Price Calculator

Total price and quantity—cost per unit; optional second product comparison.

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Profit Margin Calculator

Revenue and cost—gross profit dollars and profit margin % on revenue.

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Commission Calculator

Sale amount and commission rate—fee and net to seller.

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List vs Sale Discount

List price and sale price—discount percent and dollars saved.

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Savings Goal (Months)

Target balance, monthly deposit, and nominal annual rate—months to reach goal (simplified).

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Payback Period Calculator

Upfront cost and constant yearly benefit—simple payback time in years.

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Hourly to Monthly Pay

Hourly rate × hours per week × (52÷12)—rough gross monthly (before tax).

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Percent of a Number

What is P% of N? Quick multiply N×P÷100.

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Price Before Tax

Tax-included total and rate—net price and tax portion.

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Stacked Discounts

Two successive percent-off steps—final price and equivalent single discount.

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Interest-Only Loan Payment

Principal and APR—monthly interest-only payment (no amortization).

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Loan-to-Value (LTV)

Loan amount and property value—LTV % for quick mortgage context.

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Debt-to-Income Ratio

Monthly debt payments and gross monthly income—DTI %.

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Part vs Whole Percent

What percent is A of B? (A / B) × 100.

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Annual → Monthly Salary

Gross annual pay ÷ 12 (plus rough weekly from ÷ 52).

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Stock Split Shares

Shares held and split factor—count after split.

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CPM Ad Cost

Impressions and CPM—simple media cost estimate.

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Rent per ft²

Monthly rent and leased square feet—$/ft²/month.

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Meeting Cost

People, hourly rate, minutes—rough meeting cost.

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Trip Fuel (L/100 km)

EU-style consumption, km, price per liter—trip cost.

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Vacation Payout

Daily pay × payout days—simple gross estimate.

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Rent per m²

Monthly rent and square meters—€/m² style density.

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VAT Gross from Net

Net amount and VAT %—gross and tax portion.

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Trip MPG

Miles since last fill and gallons pumped—MPG estimate.

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Margin of Error

Sample size and confidence—proportion poll MOE (p=0.5).

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Credit Utilization

Balance and credit limit—utilization percent (rough guidance).

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Decimal → Percent

Convert a decimal like 0.25 to a percent string.

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Percent → Decimal

Strip % and divide by 100—quick conversion.

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Lease Miles

Allowed vs driven mileage (rough).

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Salary → Hourly

Annual ÷ (hours × 52 weeks).

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Grade %

Earned ÷ possible points.

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Tip + Tax

Subtotal, tax %, tip % breakdown.

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Net Pay (Flat %)

Illustrative take-home after flat %.

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Biweekly ÷26

Gross per paycheck from annual.

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Semimonthly ÷24

Twice-a-month gross from annual.

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Weekly Gross

Hourly × hours per week.

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Monthly Gross

Hourly to rough monthly gross.

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