Calculators

Tools in Calculators

• Aspect Ratio Calculator Find the aspect ratio of any width and height, and get the matching dimension for a target size.
• DPI Calculator Calculate an image's DPI from its pixel dimensions and the size you want to print it at.
• Decimal Hours Calculator Convert hours and minutes into decimal hours for timesheets, and decimal hours back into time.
• Hours Between Two Times Work out the hours and minutes between a start and end time, including overnight shifts and breaks.
• PPI Calculator Calculate the pixel density of a screen or digital image from its resolution and diagonal size.
• Percentage Difference Calculator Calculate the percentage difference between two numbers, measured against their average.
• Percentage Increase Calculator Work out how much a number rose or fell as a percentage, from a starting value to a new one.
• Pixels to Inches Calculator Convert pixel dimensions to inches, centimetres and millimetres at any DPI or PPI.
• Print Size Calculator See how large an image can be printed at a chosen DPI, in both inches and centimetres.
• Reverse Percentage Calculator Find the original value before a percentage increase, decrease, discount, or markup was applied.