Storage, power, and planning. Formula included.
SSD endurance calculator
Estimate how many years an SSD rating lasts at your daily write rate.
Open calculator TransfersFile transfer time calculator
Turn a file size and a real copy speed into minutes.
Open calculator PowerPower station runtime calculator
Estimate backup runtime from watt-hours, load, and conversion loss.
Open calculator EnergyPC electricity cost calculator
Estimate what a PC or NAS costs to run from watts, hours, and your rate.
Open calculator Dates & planningAge calculator
Calculate age between two dates in calendar years, months and days.
Open calculator Health screeningAdult BMI calculator
Calculate BMI using metric or imperial measurements and understand its limits.
Open calculator Energy estimateDaily calorie calculator
Estimate adult maintenance calories with the formula and assumptions explained.
Open calculator Pregnancy planningPregnancy due date calculator
Estimate a due date from a last period or a known conception date.
Open calculatorKnow what your result means
Device calculators use the numbers you enter. A rated TBW, a cable badge, and a battery watt-hour figure are not a guarantee. Health calculators give estimates, not diagnoses. BMI does not measure body fat directly, calorie needs vary, and a due date is an estimate. Each page explains who the tool is for and when a clinician’s advice is needed.
Calculations run in your browser. The calculator does not submit the values you enter.
