Browse 18 free everyday calculators with instant answers, step-by-step formulas, and related tools. No sign-up needed; results appear as you type.
Calculate sale prices and savings from discounts and coupons. Enter the original price and percent off to see your final price instantly, free.
Calculate restaurant tips and split the bill fairly. Enter the bill total, tip percentage, and diners for instant per-person amounts, free.
Add or subtract hours and minutes to calculate elapsed time, shift lengths, and durations between times. Free time calculator, instant results.
Calculate the fuel cost for any trip from distance, fuel efficiency, and gas price. Free trip fuel cost estimator with instant results as you type.
Calculate the exact age difference between two dates in years, months, and days. Free age difference calculator with instant results as you type.
Calculate your GPA from course grades and credit hours on weighted or unweighted scales. Free GPA calculator with instant results as you type.
Convert between markup and profit margin percentages and calculate selling prices from cost. Free markup and margin calculator, instant results.
Punch clock calculator and time clock calculator with lunch for one shift: subtract unpaid lunch, then estimate regular time, overtime, and gross pay.
Calculate overtime pay from regular hours, overtime hours, and hourly rate.
Timesheet calculator for weekly clock-in and clock-out times, unpaid breaks, and overtime pay.
Time card calculator for weekly hours, unpaid lunch, and gross pay with overtime.
Figure out how much mulch you need in cubic yards and bags, and compare bulk versus bagged prices.
Estimate gravel by cubic yard, tons, or bags from your project area and depth, with a bulk cost estimate.
Calculate how much topsoil you need in cubic yards and bags for lawns, beds, and raised beds.
Estimate pressure washing cost per square foot by surface type, with a minimum job charge and a homeowner vs operator price view.
Estimate house cleaning prices by square footage, clean type, and visit frequency, with standard, deep, and move-out rates.
Estimate gutter cleaning prices by linear feet and stories, with steep-roof and gutter-condition adjustments.
Convert oven recipe temperature and time to air fryer settings with the standard rule of thumb plus food presets.
These tools are organized around the same topic so you can move between related calculations without searching from scratch.