3,000+ Smart Calculators & Tools

Fast, reliable micro-utilities for finance, health, engineering, and personal productivity.

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Showing 49–72 of 86 tools in Finance
Finance

PAYE Plan Extra Payments Calculator

Analyze how additional principal contributions affect your PAYE repayment schedule and potential 20-year loan forgiveness balance.

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Finance

RV Loan Extra Payments Calculator

Calculate how much interest you save and how many years you shave off your motorhome or camper loan with extra payments.

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Finance

RV & Camper Loan Calculator

Calculate monthly loan payments, total interest, and financing costs for motorhomes, travel trailers, and campers.

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Finance

Boat & Marine Loan Calculator

Calculate monthly payments, total borrowing costs, and interest schedules for boats, yachts, and marine vessels.

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Finance

Motorcycle Loan Calculator

Calculate monthly payments, total interest, and financing breakdown for new and pre-owned motorcycle purchases.

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Finance

Lease vs Buy Auto Calculator

Compare total multi-year out-of-pocket expenses, monthly costs, and residual equity between leasing and purchasing a vehicle.

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Finance

Auto Refinance Loan Calculator

Calculate monthly payment savings and total lifetime interest reductions by refinancing your auto loan at a lower interest rate.

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Finance

Tip & Bill Split Calculator

Calculate restaurant gratuity percentages, total bill amounts, and divide checks equally among dinner guests.

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Finance

Net Worth Calculator

Calculate your total personal net worth by tallying financial assets, real estate, cash, and deducting liabilities and debts.

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Finance

Electricity Cost Calculator

Estimate the kilowatt-hour (kWh) power consumption and running cost of household electrical appliances.

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Finance

Concrete Volume Calculator

Calculate cubic yards, cubic meters, and premix bags of concrete required for construction slabs and footings.

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Finance

Ovulation Calculator

Identify peak ovulation days and your six-day fertile window based on the start date of your last period and cycle length.

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Finance

Pediatric Dosage Calculator

Calculate pediatric drug doses from standard adult dosages based on the child's body weight using Clark's Rule.

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Finance

Freelance Hourly Rate Calculator

Calculate the hourly rate you need to charge to reach your personal target income after business overhead, non-billable hours, and taxes.

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Finance

Rule of 72 Calculator

Estimate the exact number of years required to double an investment at any fixed annual compound interest rate.

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Finance

Ohms Law Calculator

Solve DC circuit relationships across Voltage (V), Current (I), Resistance (R), and Electrical Power (P).

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