๐Ÿ‡ณ๐Ÿ‡ฑ Free Dutch calculators โ€” tax & benefit rates updated for 2026

๐Ÿ’ฑ Currency & Forex Calculators

Euro converters with live ECB-based rates (USD, GBP, IDR, DKK, NOK) plus forex lot size and compounding tools.

6 free calculators in this category๐Ÿ•’ Updated October 2026
Overview

Euro converters for the currencies Dutch residents and expats use most, plus forex position-size tools. Rates load live from the European Central Bank reference feed when your browser can reach it, and you can always type your own rate.

Using the converters

Pick USD to euro, pound to euro, rupiah to euro, Danish krone to euro or euro to Norwegian krone. Every tool converts both ways and lists common amounts. Traders can size positions with the Forex Calculator.

Frequently asked questions

Where do the exchange rates come from?+

From the ECB reference rates via a public API, refreshed on each page load. They are mid-market rates, not what a bank or card will give you.

Why does my bank give a different rate?+

Banks and money-transfer firms add a margin or fee to the mid-market rate.

Is this financial advice?+

No. It is an information tool.

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Dutch net salary, 30% ruling, ZZP, holiday allowance, VAT (BTW), box 3, bijtelling and more โ€” built on 2026 Belastingdienst rates.

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Mortgage & Loans

Dutch mortgage, maximum mortgage, repayment schedules, mortgage interest relief, rent vs buy and loan calculators.

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Car & Lease

Financial lease, private lease, operational lease and tyre-size calculators for drivers and businesses in the Netherlands.

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Investing & Savings

Compound interest, investment return, dividend and long-term investing calculators with Dutch box 3 tax.

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Calorie, protein, FFMI, 1RM, running pace, QTc, TI-RADS, period and child-height calculators.

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Matrix, determinant, eigenvalue, Pythagoras, quadratic formula, average, percentage and dilution calculators.

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Laminate flooring, wallpaper and curtain fabric calculators for home renovation projects.

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FOV and Minecraft Nether portal coordinate calculators.

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Gematria, numerology, Chinese zodiac, angel number, rising sign and moon sign calculators for fun and reflection.

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Business & Marketing

ROAS and break-even ROAS calculators for ad budgets and e-commerce.

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Guides to the calculator (cost estimator) job in Dutch construction: duties, salary and vacancies.

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