Online Calculators
Browse free online calculators on UtilHubX for finance, health, date and time, business, and everyday calculations.
What these online calculators help with
Online calculators make it easier to handle routine number-based work without opening spreadsheets or installing software. This page brings together practical calculators for money, health, dates, time, business, and conversions so visitors can find the right workflow faster.
It is especially useful when you know you need a calculator but have not decided which one yet. Grouping nearby options in one place makes the site easier to browse and helps people move from a broad search query to a specific answer quickly.
Calculator categories on UtilHubX
Loan Calculator
Estimate monthly loan payments online using loan amount, interest rate, and repayment term.
Open toolFinanceMortgage Calculator
Estimate mortgage payments online using home price, down payment, loan term, and interest rate.
Open toolFinanceCar Payment Calculator
Estimate monthly car payments online using vehicle price, loan term, trade-in, and interest rate.
Open toolFinanceCompound Interest Calculator
Estimate compound interest growth over time for savings, investments, and recurring contributions.
Open toolFinanceSavings Calculator
Estimate future savings growth online using deposits, interest, and time.
Open toolFinanceROI Calculator
Calculate return on investment online to compare profit, cost, and overall performance.
Open toolHealthBMI Calculator
Calculate body mass index online using height and weight for a quick BMI estimate.
Open toolHealthCalorie Calculator
Estimate daily calorie needs online based on age, size, activity, and goals.
Open toolHealthProtein Calculator
Estimate daily protein intake online based on body weight, activity level, and goals.
Open toolHealthWater Intake Calculator
Estimate daily water intake online based on body size, climate, and activity level.
Open toolDate and TimeAge Calculator
Calculate exact age online in years, months, and days from a birth date or start date.
Open toolDate and TimeDays Between Dates
Find the number of calendar days between two dates for deadlines, travel, and planning.
Open toolDate and TimeCountdown Calculator
Count down to a future date and see the remaining days, hours, and time left.
Open toolDate and TimeHours Worked Calculator
Calculate total hours worked online for shifts, timesheets, and payroll estimates.
Open toolConversionUnit Converter
Convert units online for length, weight, temperature, speed, volume, and more.
Open toolConversionFeet to Meters Converter
Convert feet to meters online instantly for distance, height, and measurement tasks.
Open toolConversionKG to LBS Converter
Convert kilograms to pounds online instantly for weight and everyday measurement tasks.
Open toolBusinessDiscount Calculator
Calculate discount amounts and final prices online for sales, pricing, and retail math.
Open toolBusinessBreak-Even Calculator
Calculate break-even point online using fixed costs, variable costs, and selling price.
Open toolDate and TimeUnix Timestamp Converter
Convert Unix timestamps to readable dates and times online for logs and development work.
Open toolBusinessSales Tax Calculator
Calculate sales tax, subtotal, and final price online for quotes, invoices, and purchases.
Open toolFinanceCredit Card Payoff Calculator
Estimate how long it may take to pay off credit card debt based on balance, APR, and payment amount.
Open toolDate and TimeBusiness Days Calculator
Count business days and weekdays between two dates online for deadlines and scheduling.
Open toolDate and TimeWeeks Between Dates Calculator
Calculate the number of full weeks and extra days between two dates online.
Open toolWhy browser-based calculators are useful
- Get a quick answer without creating a spreadsheet.
- Compare several calculation methods in one place.
- Use calculators on desktop or mobile with no setup.
- Move from broad planning to a specific calculator fast.