Utility collection · 06 calculators

Price & pay calculators

Compare packages, discounts, salaries and commissions with direct, inspectable arithmetic. Inputs are processed locally and are not saved by default.

Which costs less?

Unit-price comparison calculator

Normalize two packages to the same unit and reveal the cheaper per-unit price.

Checkout maths

Calculate the discount amount, after-discount subtotal and tax-adjusted final price.

Pay change

Translate a percentage raise into annual pay, monthly increase and inflation-adjusted change.

Premium hours

Split a pay period into regular and overtime hours and see the premium rate applied to each.

Proportions

Solve a proportion of the form A : B = C : D for the missing fourth value, and see the split as percentages.

Variable pay

Estimate commission above a threshold and combine it with entered base pay.