Which salary calculator should I use first?

Place base on the occupation chart first. Then period-convert if the offer is hourly or monthly, then take-home in the employment country. Add cost of living only if the city changes. Use inflation last, and only to compare with your past pay — not to decorate a current offer.

Why did I get a nonsense take-home number?

Usually the gross is in the wrong currency or the wrong country model. Convert to local gross first, pick the employment country, and read the model note on the result. Our estimates also omit many payroll levies, so “too high” versus a payslip is common even when inputs are right.

Can I send a COL-adjusted salary as my expected pay?

No. Employers pay nominal currency. COL-adjusted figures are for ranking cities. Always send a nominal range tied to local percentiles instead. Using index units in a negotiation is how people look confused rather than informed.

Should I convert currency before or after tax?

Enter gross in the currency the tax model is built for (usually the local one), then convert the result once if you need another unit. Taxing a converted figure in the wrong country’s model double-counts the mistake.

Are these calculators financial advice?

No. They are educational estimates for comparison. Large decisions — relocation, contracting, equity events, immigration — need official tools or a qualified professional. If five reruns change your mind, you are fitting the model to the offer; write the first honest run down instead.

Pay by Role editorial · Updated August 25, 2026 · 11 min read

Using salary calculators without fooling yourself

A common error is converting currency, then applying a COL index, then applying tax for the wrong country. This guide is how to use salary calculators on Pay by Role without talking yourself into the offer you already want.

What question does each tool answer?

Tool	Question
Take-home / tax	Net from gross with a simplified national income-tax model
Cost of living	Prices and rent sketches from a city index
Inflation	Rebase an amount across years
Salary / hourly / annual	Change pay period
Currency	Change currency of a figure

Prefill from a salary page when you can so the city, country, and gross stay consistent.

Which number should you type into the tax calculator?

Gross in the currency the national model expects. A UK tax estimate on a USD figure you forgot to convert will be nonsense. Display currency on the site is for reading tables, not a silent switch of the tax engine. For hourly contractor quotes, convert to annual at a realistic utilisation before you tax-estimate as if you were a full-year employee.

How should you treat COL and rent outputs?

Replace modeled rent with listings as soon as you have a neighbourhood shortlist. COL-adjusted salary is not the cash you will be paid. Do not send a COL-adjusted number to a recruiter as your “expectation.” Send nominal currency. If two cities are close on COL-adjusted pay, decide on non-money factors instead of squeezing another decimal out of the index.

When is the inflation calculator the right tool?

When you ask whether last year’s pay kept up, or to compare an old job to a new one in real terms. Do not inflate a current offer “because prices might rise.” Employers do not pay that way. Pick a start and end year that match your last raise. Pair inflation with a housing check when housing is the pain. See inflation, raises, and real pay.

What is a clean sequence for an offer?

Place base on the occupation chart.
Period-convert if needed.
Take-home in the employment country.
COL and rent if a city change.
Inflation only if you are comparing to your past self.

Write the outputs down. Recalculating five times with slightly different inputs is how you confirm the offer you already wanted. When the decision is large, verify tax and immigration with a human who is not a website.

Key takeaways

One tool, one question — do not chain currency, COL, and tax in a random order.
Type local gross into tax models; display currency is for reading.
COL-adjusted pay is not an expectation you send to a recruiter.
Inflation rebases old cash; it does not inflate a live offer.
Write the outputs once so you stop remixing the spreadsheet.

Frequently asked questions

Which salary calculator should I use first?: Place base on the occupation chart first. Then period-convert if the offer is hourly or monthly, then take-home in the employment country. Add cost of living only if the city changes. Use inflation last, and only to compare with your past pay — not to decorate a current offer.
Why did I get a nonsense take-home number?: Usually the gross is in the wrong currency or the wrong country model. Convert to local gross first, pick the employment country, and read the model note on the result. Our estimates also omit many payroll levies, so “too high” versus a payslip is common even when inputs are right.
Can I send a COL-adjusted salary as my expected pay?: No. Employers pay nominal currency. COL-adjusted figures are for ranking cities. Always send a nominal range tied to local percentiles instead. Using index units in a negotiation is how people look confused rather than informed.
Should I convert currency before or after tax?: Enter gross in the currency the tax model is built for (usually the local one), then convert the result once if you need another unit. Taxing a converted figure in the wrong country’s model double-counts the mistake.
Are these calculators financial advice?: No. They are educational estimates for comparison. Large decisions — relocation, contracting, equity events, immigration — need official tools or a qualified professional. If five reruns change your mind, you are fitting the model to the offer; write the first honest run down instead.

Next step

Calculators are sharp when each one answers one question. Sequence them, write the outputs, and stop when the story stops changing.

Start with period conversion and take-home →

Prefill from a salary page when you can, or open the full tools list from any city page.