Paper Roll Diameter Calculator

Calculate the outside diameter of a paper roll using core diameter, paper thickness, roll length, and packing factor. This helps estimate the final roll size for converting, printing, packaging, and inventory planning.

Paper Roll Length Calculator

Calculate the approximate length of paper wound on a roll using the roll’s outside diameter, core diameter, and paper thickness. Choose the unit system that matches your measurements.

Paper Roll Weight Calculator

Calculate the estimated weight of a paper roll using roll diameter, core diameter, roll width, and paper basis weight. The formula estimates paper area from the difference between the outer and core cylinder volumes and converts basis weight in GSM to total roll weight.

Color Printing Cost Calculator

Estimate the total cost of a color printing job based on quantity, page count, paper size, paper type, and finishing. This calculator applies per-page color print pricing with paper and finishing multipliers for a realistic total estimate.

Cost Per Page Calculator

Estimate the cost per page for writing, design, or printing work based on total project cost, number of pages, turnaround speed, content complexity, and revision rounds.