Calculators & Converters
Practical browser-based calculators for dates, time, files, percentages, measurements, tips and loan payments.
Days Between Dates Calculator
Calculate the exact number of days between two dates.
Age Calculator
Calculate exact age in years, months and days.
Add Days to Date Calculator
Add days, weeks or months to any date.
Subtract Days from Date Calculator
Subtract days, weeks or months from any date.
Business Days Calculator
Count working days between dates excluding weekends and supplied holidays.
Time Duration Calculator
Calculate elapsed time between two times including overnight durations.
Hours Between Times Calculator
Calculate hours and minutes between two times, including overnight and decimal hours.
Hours Worked Calculator
Calculate hours worked, breaks, net hours and decimal hours.
Time Card Calculator
Calculate weekly work hours, breaks, overtime and estimated pay.
Shift Hours Calculator
Calculate net shift hours, breaks, overnight work and optional pay.
Time Difference Calculator
Calculate elapsed time between two dates and times.
Decimal Hours Calculator
Convert hours and minutes to decimal hours and back.
Hours to Minutes Converter
Convert hours into total minutes.
Minutes to Hours Converter
Convert total minutes into hours, minutes and decimal hours.
Add Time Calculator
Add hours, minutes and seconds with midnight rollover support.
Subtract Time Calculator
Subtract hours, minutes and seconds with day rollover support.
Overtime Calculator
Estimate regular hours, overtime hours and overtime pay using a chosen threshold and multiplier.
Business Hours Calculator
Calculate working time between dates excluding non-working days, off-hours and breaks.
Work Hours Per Week Calculator
Calculate weekly, monthly and yearly work hours from daily hours, work days and breaks.
Weekly Hours Calculator
Add daily clock-in and clock-out times across a week with breaks, decimal hours and overtime.
Payroll Hours Calculator
Convert work shifts into payroll hours, regular hours, overtime and estimated gross pay.
Meeting Duration Calculator
Calculate meeting duration and total meeting hours from start and end times.
Time Until Calculator
Find the exact time remaining until a future date and time.
Time Since Calculator
Find the exact time elapsed since a past date and time, with live updates to now.
Date and Time Calculator
Calculate date and time differences, add or subtract durations, and inspect the resulting date and time.
Sleep Duration Calculator
Calculate sleep duration between bedtime and wake-up time, including overnight sleep.
Flight Duration Calculator
Estimate elapsed flight time between departure and arrival date-times, including overnight journeys.
Elapsed Time Calculator
Calculate elapsed time between two clock times with overnight rollover and total minutes and seconds.
Time Zone Converter
Convert a date and time between IANA time zones with DST-aware offsets and date changes.
Time Zone Duration Calculator
Compare two time zones at a selected date and time, including UTC offsets, DST status and calendar-day changes.
Meeting Time Zone Calculator
Find a practical meeting window across time zones using local working hours and DST-aware conversion.
DST-Aware Time Calculator
Convert times using the browser IANA time-zone database so daylight-saving changes apply for the selected date.
World Clock Difference Calculator
Compare local times, UTC offsets and date changes across selected world time zones.
Business Time Across Time Zones Calculator
Compare working-hour windows across time zones and identify overlapping business hours.
Mumbai to New York Time Converter
Convert Mumbai India time to New York time with date changes and daylight-saving adjustments.
India to London Time Converter
Convert India Standard Time to London time with daylight-saving-aware results.
New York to London Time Converter
Convert New York time to London time with daylight-saving-aware date and offset handling.
Los Angeles to Tokyo Time Converter
Convert Los Angeles time to Tokyo time with DST-aware date changes.
Dubai to India Time Converter
Convert Dubai time to India Standard Time and show the local date and offset.
UTC to India Time Converter
Convert UTC to India Standard Time with a clear local date and time.
Discount Calculator
Calculate discount amount and final price from an original price and discount percentage.
Sales Tax Calculator
Calculate tax amount and final price from a price and tax percentage.
Percentage Increase Calculator
Calculate percentage increase or decrease between two values.
Ratio Calculator
Simplify a ratio and show the reduced relationship between two values.
Average Calculator
Calculate the arithmetic mean of entered values.
Simple Interest Calculator
Calculate simple interest and total amount from principal, annual rate and time.
Compound Interest Calculator
Calculate compound growth, total interest and future value with configurable compounding frequency.
Savings Calculator
Estimate future savings from regular monthly contributions and an annual rate.
Speed Converter
Convert speed between meters per second, kilometers per hour, miles per hour, knots and feet per second.
Temperature Converter
Convert temperatures between Celsius, Fahrenheit and Kelvin.
Area Converter
Convert square meters, square feet, square yards, acres and hectares.
Volume Converter
Convert liters, milliliters, cubic meters, gallons and cubic feet.
SIP Calculator
Estimate mutual fund SIP future value from monthly investment, expected annual return and investment period.
GST Calculator
Calculate GST amount and price including or excluding a selected GST rate.
FD Calculator
Estimate fixed deposit maturity and interest from principal, annual rate, tenure and compounding frequency.
CAGR Calculator
Calculate compound annual growth rate from starting value, ending value and investment period.
Profit Margin Calculator
Calculate profit, markup and profit margin from cost and selling price.
Break Even Calculator
Calculate break-even units and revenue from fixed costs, variable cost and selling price.
Study Time Calculator
Plan focused study sessions inside an available time window, including breaks and unused time.
Deadline Calculator
Calculate the daily study hours needed to finish a target workload by a deadline.
Pomodoro Time Calculator
Calculate Pomodoro sessions, focused work, short breaks, long breaks and total elapsed planning time.
Focus Time Calculator
Calculate how much focused work fits between two times after accounting for breaks.
Project Duration Calculator
Estimate project workdays and finish date from total work hours, daily capacity and working days.
Workday End Time Calculator
Calculate when a workday ends from start time, work hours and break time.
Week Number Calculator
Find the ISO 8601 week number and date range.
Countdown Timer
Create a live countdown to any date and time.
Christmas 2026 Countdown
Live countdown to Christmas Day 2026.
New Year 2027 Countdown
Live countdown to New Year 2027.
File Size Converter
Convert common decimal file-size units.
Percentage Calculator
Calculate percentages and percentage change.
Tip Calculator
Calculate tips, totals and split bills.
Length Converter
Convert common length units.
Weight Converter
Convert kilograms, pounds, grams and ounces.
Loan EMI Calculator
Estimate monthly EMI, interest and total repayment.