Markup Calculator
Find your markup percentage, selling price, profit and margin from cost and price.
Pay Raise Calculator
Calculate your new salary, raise amount and pay-period equivalents from a raise percentage.
Overtime Calculator
Calculate overtime pay, gross pay and your effective hourly rate from hours worked.
The math behind pay and pricing
Pay raise, overtime and markup calculations share something in common: they're simple formulas that people still get wrong under pressure, usually because two similar-sounding numbers get swapped. A 10% raise and a $10,000 raise are different calculations. A 25% markup and a 25% margin produce different prices on the same cost. These calculators exist to remove that ambiguity — you enter what you know, and the tool shows which formula it used to get the result.
Markup and margin are not the same number
This is the single most common mix-up in this category. Markup is profit expressed as a percentage of your cost. Margin is the same dollar profit expressed as a percentage of your selling price. Because the denominators are different, a 25% markup and a 25% margin land on different prices for the same cost — and confusing the two is a fast way to under-price a product. The Markup Calculator shows both figures side by side for exactly this reason.
Gross pay, not take-home pay
Every calculator in this category — pay raise, overtime, and any pay-period conversions — works in gross figures. None of them apply tax withholding, benefits deductions, or jurisdiction-specific overtime rules, because those vary by employer, state and country in ways a general calculator can't safely guess at. Treat the output as your gross pay change, then apply your own withholding rate to estimate take-home impact.
When "time and a half" isn't 1.5×
The Overtime Calculator defaults to a 1.5× multiplier because that's the most common overtime rate, but some employers and some jurisdictions use double-time for certain hours (holidays, hours past a second threshold). Check your pay period's actual multiplier before relying on the default.
Frequently asked questions
What's the difference between markup and margin?
Markup is profit as a percentage of cost. Margin is the same profit as a percentage of selling price. Because the base number is different, the two percentages are never equal at the same dollar profit — margin is always the lower number.
Do these calculators account for taxes?
No. Pay raise and overtime calculators show gross pay only. Actual take-home pay will be lower once tax withholding and any pre-tax deductions are applied.
How is overtime usually calculated?
Most commonly, overtime hours are paid at 1.5× the regular hourly rate ("time and a half") after a weekly hours threshold, though the exact threshold and multiplier vary by employer and jurisdiction — check your own pay policy.