Online Calculators

Calculate the GCD, LCM, and simplified ratio for multiple integers.

Calculate circle diameter, circumference, and area from a given radius.

Calculate pace and speed from distance and time for running, walking, and race planning.

Calculate business days and weekend days between two dates for planning, payroll, and scheduling.

Calculate hours worked, decimal hours, and overtime or shortage versus a target shift.

Estimate the time needed to reach a savings goal using current balance, monthly deposits, and interest.

Calculate selling price and profit from cost and markup percentage.

Work out profit amount, gross margin, and markup from cost and selling price.

Calculate VAT amount, net amount, and gross amount for invoice and price planning.

Calculate pre-tax price, sales tax, and final total using add-tax or remove-tax mode.