---
title: "International Calculators by Country — BMI, Salary & Tax | WorldCalculators.org"
description: "Free calculators showing how BMI thresholds, take-home pay, income tax, and mortgage rules differ by country — US, UK, Japan, India, Germany, and more. No ads, no sign-up."
url: "https://worldcalculators.org/"
canonical: "https://worldcalculators.org/"
---

# Calculators That Know Your Country BMI, salary, tax & mortgage standards compared

Free calculators showing how BMI thresholds, take-home pay, income tax, and mortgage rules differ by country — US, UK, Japan, India, Germany, and more. No ads, no sign-up.

## Same number. Opposite meaning.

A BMI of 26 is "overweight" by WHO standards (used in the US, Europe, Australia). That same BMI 26 is classified as " Obese Grade I " in Japan. Your doctor's recommendation changes based on which standard they use. We show you all of them.

## How Countries Calculate Differently

Why does 1,000 mean something different in Germany? What is Japan's 万? How do date formats, grading systems, and VAT vs sales tax differ worldwide?

## 📚 From the Learning Hub

Step-by-step methods, formulas & worked examples.
The formula, the magic of compounding, and how to use it.

Source: https://worldcalculators.org/
Markdown mirror of the HTML page. Prefer this URL for RAG; the interactive calculator still lives on the HTML page.