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Calculators
Aspect ratio calculatorResize an image while preserving its proportions.Grade calculatorCompare weighted grades or calculate a points-based total.Hex to decimal converterConvert an unsigned hexadecimal integer without losing precision.Weeks in a yearSee calendar days, ISO weeks and partial weeks for the year.Pixel density calculatorFind screen density or the physical size of a printed image.Significant figures calculatorCount significant digits in the number as written, then round it.