Translate an hourly wage into a monthly salary estimate and see how weekly hours change the net result.
This page is useful for shift work, hourly contracts, and comparing a job ad with a monthly salary offer.
Use the calculator as the decision tool, then use the page sections below to compare the assumptions behind the estimate.
An hourly wage becomes a monthly salary only after you decide how many hours per week the contract really uses.
That means the same hourly rate can produce very different monthly gross and net outcomes at 24, 32, or 40 hours.
The calculator annualises hourly input using weekly hours, then applies the tax-year rules to the resulting annual salary.
As the annual salary moves, the tax-credit profile moves as well, so the hourly conversion changes both gross and net.
A four-day contract is compared with a full-time schedule at the same hourly rate.
The hourly rate stays constant, but the annual and monthly salary depend on the weekly hours entered.
Compare 32 hours with 40 hours and focus on monthly net and how credits move with total annual income.
A 21+ worker checks what the 2026 hourly minimum wage roughly looks like as monthly gross and net pay.
The hourly amount is translated to annual and monthly salary using the standard weekly-hours assumption before tax and credits are applied.
Compare hourly, monthly, and yearly output to understand how the same minimum-wage level looks across payroll periods.
A part-time contract keeps the same hourly wage but lowers the weekly and monthly salary base.
The hourly gross stays the same, but the annualised income is lower because fewer weekly hours are entered.
Compare the same hourly wage at 24, 32, and 40 hours and focus on monthly net, yearly net, and the role of tax credits.
A part-time worker wants to compare the same hourly value across 32-hour and 40-hour contracts.
The tax-credit profile changes because the annual income changes, not just the weekly hours.
Compare hours per week, gross annual income, and net monthly income for both schedules.
These questions stay focused on realistic payroll or salary situations, so you can compare them directly with the calculator.
The calculator always converts the input to an annual basis. When hours per week or the implied annual salary change, the tax and credit picture changes with it.
The hourly rate can stay the same while the yearly and monthly income base becomes lower because fewer hours are worked. That changes the total tax and the credit profile as well.
Even at lower income, payroll still reflects wage tax and credits together. Credits can offset part of the tax, so the net share does not behave like one fixed tax percentage.
Because salary outcomes can depend on employer payroll settings, pension, benefits, reimbursements, and other details that are outside a simple public calculator. The page is meant as a structured explanation and comparison tool.
Use the calculator as the decision tool, then use the page sections below to compare the assumptions behind the estimate.
Use the official pages below to verify the public rules behind the estimate and the example explanations.
Official Dutch income-tax and national-insurance rate page used as the base for payroll-tax explanations and calculator assumptions.
Open sourceOfficial 2026 labour-credit table used to explain why net salary changes with employment income levels.
Open sourceOfficial minimum-wage page used for entry-level and hourly-pay scenarios, including the 2026 adult hourly minimum wage.
Open source
