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Expert Guides & Articles

Explore our practical guides and detailed explanations to assist you with finance, health, conversion, and everyday calculations.

Featured GuideFinance

How French APL housing benefit (CAF) is estimated in 2026

Learn how the CAF calculates APL housing subsidies in France based on income, rent, and household size in 2026.

Finance

How to calculate your mortgage borrowing capacity in France 2026

Understand the HCSF 35% debt ratio rule and calculate your maximum borrowing power for buying French real estate in 2026.

Finance

French overtime pay calculation and tax exemption rules in 2026

Understand legal overtime premiums (+25% & +50%), hourly rates, and tax-exemption thresholds in France for 2026.

Finance

How to calculate mutual severance pay (Rupture Conventionnelle) in France 2026

Learn how statutory severance pay is calculated for contract terminations in France under Labor Code rules for 2026.

Finance

How France's Pension System Works: Points, Trimestres & AGIRC-ARRCO Explained

Understand the French pension system mechanics. Learn how trimestres, basic pensions, and AGIRC-ARRCO points set your payout.

Health

How to Calculate BMI: Understanding the Body Mass Index

Learn how to calculate your Body Mass Index (BMI), interpret the WHO health weight categories, and understand its health implications.

Health

Basal Metabolic Rate (BMR): Calories Burned at Rest

Understand your Basal Metabolic Rate (BMR), calculate the minimum energy needed to maintain life, and learn how to speed up your metabolism.

Health

How to Calculate BMR and TDEE: The Complete Daily Calorie Guide

Learn how to estimate your Basal Metabolic Rate (BMR) and TDEE. Adjust daily calories for weight loss, maintenance, or muscle gain.

Everyday

How to Calculate Discount and Sale Prices

Learn how to find discounted retail prices, calculate your net savings, and factor in sales taxes during shopping clearances.

Everyday

How to Calculate Your Exact Age and Birthday Countdown

Learn the steps to calculate your exact age in years, months, and days, how to count days to your next birthday, and leap years.

Everyday

How to Calculate and Split Restaurant Tips Easily

Master the arithmetic of tipping, learn how to split bills fairly among friends, and understand global tipping etiquette when traveling.

Conversion

How to Convert Length and Distance Units Easily

Master conversions between metric and imperial systems. Learn how to convert meters, feet, inches, yards, kilometers, and miles.

Conversion

How to Convert Celsius, Fahrenheit, and Kelvin

Learn the mathematical formulas to convert temperatures between Celsius, Fahrenheit, and Kelvin scales. Understand zero offsets and scale differences.

Conversion

How to Convert Weight and Mass Units

Master conversions between metric (kg, g, mg) and imperial (lb, oz) weight units. Learn the mathematical factors for shipping and cooking.

Finance

Convert Gross to Net Salary in France: 2026 Guide

Understand the difference between gross and net income in France. Learn standard social charge rates for employees, executives, and public servants.

Finance

French Income Tax Brackets 2026

Official 2026 French income tax brackets with 0.9% indexation rates. Free instant estimator for your 2026 tax calculation.

Finance

How to Calculate Loan Repayments and Monthly Interest

Learn how banks calculate monthly loan repayments, understand amortization tables, and estimate the total interest costs of borrowing.

Finance

How to Calculate Mortgage Monthly Payments and Rates

Learn how to structure your property purchase: calculate mortgage repayments, estimate borrower insurance, and understand debt-to-income limits.

Finance

French Notary Fees Increase 2026: What Property Buyers Need to Know

Understand the impact of the 2026 departmental DMTO tax rate hike to 5.0% on notary fees for buying real estate in France.

Finance

French Property Capital Gains Tax: Brackets and Allowances 2026

Understand how property capital gains tax works in France for 2026. Calculate tap-down relief, holding periods, and tax rates for real estate.

Finance

Renting vs Buying a House: The Financial Comparison

Compare the long-term financial implications of renting versus buying a home. Factor in transaction costs, opportunity costs, and property maintenance.

Finance

How to Project Your Retirement Savings and Capital

Learn how to forecast your retirement capital. Understand compound interest, calculate monthly savings goals, and adjust for inflation.

Finance

How to Calculate Savings Interest and Compound Growth

Understand the difference between simple and compound interest. Maximize your financial yields with recurring monthly contributions.

Finance

How to Calculate VAT (TVA) in France

Learn how to calculate Value Added Tax (TVA) in France. Convert prices from net of tax (HT) to gross (TTC) and understand standard rates.