StraightToolsAll tools
Browse every calculator and utility on StraightTools.
Salary Converter
Convert annual, monthly, weekly, daily, and hourly pay.
MoneyHourly to Salary
Convert an hourly wage into annual, monthly, and weekly pay.
MoneyMortgage Calculator
Estimate monthly mortgage principal and interest.
MoneyLoan Calculator
Estimate payments, total interest, and total loan cost.
MoneyTip Calculator
Calculate a tip and split a restaurant bill.
MoneyDiscount Calculator
Calculate sale price and savings from a percentage discount.
MoneyPercentage Calculator
Calculate percentages and percentage change.
MathFraction Calculator
Add, subtract, multiply, and divide fractions.
MathAverage Calculator
Find the mean, median, minimum, maximum, and sum.
MathRandom Number Generator
Generate random whole numbers in any range.
MathUnit Converter
Convert common length, weight, volume, area, speed, and data units.
ConversionTemperature Converter
Convert Celsius, Fahrenheit, and Kelvin.
ConversionArea Calculator
Calculate rectangle, triangle, circle, and square area.
ConversionDate Calculator
Add or subtract calendar days from any date.
Date & TimeDays Between Dates
Count calendar days between two dates.
Date & TimeBusiness Days Calculator
Count weekdays between two dates.
Date & TimeAge Calculator
Calculate age in years, months, and days.
Date & TimeWorld Time
See current local time in popular cities.
Date & TimeTime Zone Converter
Convert a date and time between major time zones.
Date & TimeOnline Timer
Run a countdown timer in your browser.
Date & TimeOnline Stopwatch
Start, pause, and reset a simple stopwatch.
Date & TimeWord & Character Counter
Count words, characters, sentences, and reading time.
TextCase Converter
Convert text to uppercase, lowercase, title case, or sentence case.
TextRemove Line Breaks
Turn multi-line text into a clean single line.
TextFuel Cost Calculator
Estimate fuel use and road-trip cost.
TravelPace Calculator
Calculate running pace, speed, or finish time.
Fitness