The most complete calculator on the internet! Calculate BMI, loans, compound interest, conversions and much more. 100% free, works offline and installs as an app on your device.
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Used by students, professionals and companies worldwide
Features and Advantages
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Mathematical Precision
Validated algorithms and updated formulas for reliable results in all calculations.
⚡
Ultra Fast
Instant calculations with optimized interface. Results in milliseconds.
📱
Works Everywhere
Desktop, tablet, smartphone. Even without internet. Install as native app.
🔒
Total Privacy
Your data stays on your device. No tracking.
🌍
Multilingual
Portuguese, English and Spanish. More languages coming soon.
📚
Educational
Learn with explanations of formulas and calculation methods used.
Calculators by Category
💰Financial
🏥Health
⚖️Legal
🏗️Construction
📐Math
🌱Environmental
75+ Free Online Calculators
Find the perfect tool for your calculations. All calculators are free, work offline and do not require registration.
2.8M+Calculations Made
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🔥 Most Used Calculators
Most Popular
🍏
BMI Calculator
Calculate your Body Mass Index.
850K+ usos⭐⭐⭐⭐⭐
💰
Loan Calculator
Simulate loan payments and interest.
620K+ usos⭐⭐⭐⭐⭐
📈
Compound Interest
Calculate investments with compound interest.
580K+ usos⭐⭐⭐⭐⭐
🧮
Basic Calculator
Fundamental mathematical operations.
🔬
Scientific Calculator
Advanced calculator with scientific functions.
🍏
BMI Calculator
Calculate your Body Mass Index.
💰
Loan Calculator
Simulate loan payments and interest.
💱
Currency Converter
Convert between different currencies.
📏
Unit Converter
Convert length, weight, temperature and more.
🧾
Tip Calculator
Calculate tips and split bills.
📊
Percentage Calculator
Calculate percentages, increases and discounts.
📈
Compound Interest
Calculate investments with compound interest.
📐
Area Calculator
Calculate areas of geometric shapes.
🌡️
Temperature Converter
Convert between Celsius, Fahrenheit and Kelvin.
📅
Age Calculator
Calculate your exact age in years, months and days.
⛽
Fuel Calculator
Calculate consumption, autonomy and cost per kilometer.
💰
Simple Interest
Calculate simple interest in loans and investments.
🏷️
Discount Calculator
Calculate discounts and final prices in purchases.
⏰
Time Converter
Convert between seconds, minutes, hours, days and more.
📊
Loan Amortization Calculator
Calculate loan amortization schedules and monthly payments.
💰
Net Salary Calculator
Calculate net salary after taxes and deductions.
⚡
Energy Consumption Calculator
Calculate electricity consumption and costs for appliances.
🎨
Paint Calculator
Calculate paint needed for walls and surfaces.
📦
Packaging Converter
Convert between different volume units for cooking and packaging.
🚗
Travel Cost Calculator
Calculate total travel costs including fuel, tolls, and per person expenses.
📈
Investment Calculator
Calculate investment growth with regular contributions and compound interest.
📅
Date Calculator
Add, subtract, or calculate the difference between dates.
💱
Manual Currency Converter
Convert currencies using custom exchange rates.
📊
Advanced Percentage Calculator
Advanced percentage calculations including ratios and proportions.
🔢
Matrix Calculator
Perform matrix operations including addition, multiplication, determinant, and inverse.
⚖️
Legal Fees Calculator
Calculate contingency fees and hiring fees.
🏠
Asset Division Calculator
Calculate asset division in divorce and inventory.
📅
Legal Interest Calculator
Calculate default interest and monetary correction.
📈
Monetary Correction Calculator
Calculate updates by official indices.
⚖️
Court Fees Calculator
Calculate court costs by state.
💊
Medication Dosage Calculator
Calculate dosage by weight and age.
👶
Child BMI Calculator
Calculate BMI and percentiles by age.
🏗️
Construction Materials Calculator
Calculate quantity of materials needed.
⚡
Electricity Calculator
Calculate electrical sizing and consumption.
📝
Grade Calculator
Calculate averages and simulate recoveries.
🎓
Educational Interest Calculator
Learn compound interest with examples.
💰
ROI Calculator
Calculate return on investment.
🏷️
Profit Margin
Calculate gross profit, markup and profit margin.
🏠
Mortgage
Simulate payments and amortization schedule.
📈
CAGR Calculator
Calculate the Compound Annual Growth Rate of investments.
🪙
Retirement
Plan your retirement by simulating future income or required savings.
⏳
Payback Calculator
Calculate the time needed to recover the initial investment.
⚖️
Breakeven Point
Calculate the sales volume needed to cover total costs.
💎
Valuation Calculator
Estimate the market value of a company by multiples or discounted cash flow.
📈
Fixed Income Calculator
Simulate CDB, CDI, and Treasury yields with tax deductions.
📊
Cap Table Simulator
Simulate shareholder dilution and new investment rounds.
🪙
Cryptocurrency Converter
Convert cryptocurrencies to fiat currencies in real time.
🎯
Savings Goal
Calculate the monthly amount needed to reach your savings goal.
📉
Depreciation Calculator
Calculate asset depreciation by different methods.
💼
CLT vs PJ
Compare the CLT salary with the PJ contract remuneration.
🏖️
Vacation Calculator
Calculate the net value of CLT vacations with allowances and advances.
⏰
Overtime Calculator
Calculate the value of overtime worked and the impact on the DSR.
📄
Termination Calculator
Simulate the termination values of an employment contract under the CLT.
❌
Rule of Three
Solve direct or inverse proportion problems quickly.
📊
Comparator CDB vs LCI vs LCA
Compare post-fixed exempt investments with taxable ones.
📦
Delivery Time Calculator
Calculate deadlines considering holidays.
📊
Linear Regression
Trend analysis and predictions.
🎲
Probability Calculator
Calculate probabilities and distributions.
🌱
Carbon Emission Calculator
Calculate carbon footprint.
💧
Water Consumption Calculator
Calculate consumption and water savings.
💵
13th Salary Calculator
Simulate the gross and net installments of your 13th salary with discounts.
🛡️
Unemployment Insurance Calculator
Estimate the value and number of unemployment insurance installments.
🐷
Savings vs CDI Simulator
Compare the profitability of savings with CDI investments.
🚗
Vehicle Financing Simulator
Simulate installments and interest on car and motorcycle financing.
🔥
Energy Expenditure (BMR & GCD)
Calculate your basal metabolic rate and daily caloric expenditure.
📐
Bhaskara Calculator
Solve quadratic equations showing the detailed step by step.
🧾
Income Tax Calculator (IRPF 2025)
Simulate the calculation of Income Tax (IRPF) using the official 2025 progressive table.
🏛️
Direct Treasury Simulator
Simulate the yield on Direct Treasury bonds: IPCA+, Prefixed and Selic.
🥗
Calorie Calculator (TDEE)
Calculate your daily calorie need (TDEE), deficit and surplus for weight loss or gain.
🏦
FGTS Simulator
Calculate the estimated balance of your FGTS, monthly income and anniversary withdrawal values.
🏪
MEI Simulator
Simulate the monthly DAS, annual billing limit and MEI benefits.
🧾
IOF Calculator
Calculate the IOF on loans, foreign exchange, investments and insurance.
🏦
PGBL vs VGBL simulator
Compare private pension plans and calculate the tax benefit of PGBL.
🏘️
Rental Property Income
Calculate the cap rate and net income of your rental property.
📊
Presumed Profit vs Simples Nacional
Compare the tax burden between Simples Nacional and Presumed Profit by activity.
🏛️
PIS/COFINS Calculator
Calculate PIS and COFINS in the cumulative and non-cumulative regimes with credits.
💼
Investment Portfolio Simulator
Simulate the growth of a portfolio diversified between fixed income, shares, FIIs and cryptocurrencies.
📉
Real Interest Calculator
Calculate the real interest rate discounting inflation (IPCA/IGP-M) of any investment.
💸
Dividend and Yield Calculator
Calculate the Dividend Yield of shares and FIIs and estimate your monthly passive income through dividends.
💼
Self-Employed Fee Calculator
Find out how much to charge as a self-employed or freelancer to have the equivalent of a CLT salary.
🛡️
INSS for the Self-Employed
Compare the INSS contribution plans for the self-employed (5%, 11% and 20%) and their benefits.
⭐
Credit Score Simulator
Simulate your credit score and receive personalized tips to improve your score.
Sua remuneração mensal como autônomo/freelancer.
INSS Calculator for Self-Employed and Individual Contributor 2025
Calculate the monthly contribution to the INSS as a self-employed person, freelancer or Individual Contributor. Compare contribution plans (5%, 11% and 20%), understand the guaranteed benefits and simulate retirement.
What is the purpose?
The self-employed, self-employed or individual service provider (Individual Taxpayer) does not have INSS automatically deducted from an employer. This calculator helps you determine the monthly amount to voluntarily contribute to Social Security by comparing the three available plans and their respective social security benefits.
Simplified Plan (11%): Contribuição = Salário de Contribuição × 11\% Note: Excludes the right to retirement based on contribution time.
Low Income Plan (5%): Contribuição = Salário Mínimo × 5\% = R\ 75,90$ Note: Limited benefits; does not entitle you to retirement over time. Restricted to those who contribute over the minimum wage.
How to interpret the result?
The result compares the three plans in terms of monthly value, annual cost and guaranteed benefits. In general: the 20% Plan is the most complete (all benefits); the 11% Plan is intermediate (saves 45% vs 20%, but loses time support); the 5% Plan is the minimum (only for those earning up to 1 minimum wage and accepting restricted benefits).
Practical Examples
Self-employed with income 5.000/mês, Plano 20%: Contribuição mensal: 1,000. Contribution salary: $5,000. Benefits: all 6 social security benefits.
Freelance income 3.000/mês, Plano 11%: Contribuição: 330/month. Savings vs 20% Plan: $270/month. You lose the right to retirement based on contribution time.
Informal worker, 5% Plan (on minimum wage): Contribution: $75.90/month. Benefits: retirement due to age, sick pay, maternity pay.
Usage Tips
If you work for a company as an independent contractor (RPA) and it deducts 11% INSS at source, you can supplement it to 20% by paying the difference (9%) on the same contribution salary.
For self-employed people who pay 20%, the amount of INSS contributed is deductible in the annual IRPF declaration as a social security expense.
Paying INSS above the ceiling ($8,157.41) does not generate any additional benefits — the contribution and benefit limit are the same.
Consider taking out a private pension plan (PGBL/VGBL) as a complement to the INSS for a more comfortable retirement.
Important Observations
Values based on the 2025 minimum wage ( 1.518,00) e no teto do INSS 2025 ( 8,157.41). The rates and ceilings are adjusted annually by the federal government. Retirement through the INSS requires a grace period for contributions: 180 months (15 years) for retirement based on age, and minimum time + score for retirement based on contribution time (extinct for new entrants under the 2019 Pension Reform).
Frequently Asked Questions (FAQ)
Technically, the Individual Taxpayer (self-employed) is required by law to contribute to the INSS if they want to have access to social security benefits. However, in practice, there is no active supervision over self-employed people who do not contribute — the consequence is simply not being entitled to benefits (retirement, sickness benefit, etc.). For those who provide services to companies (with RPA), the company deducts 11% at source and collects it on behalf of the professional.
It depends on the strategy: the 20% Plan is ideal for those looking to retire based on contribution time or want to maximize all benefits; the 11% Plan is good for those who only accept retirement due to age and want to reduce the cost; The 5% Plan is the absolute minimum for anyone who wants to have some pension coverage at a minimum cost. The choice should also consider whether you already have a private pension as a complement.
The 2019 Pension Reform ended retirement based on contribution time for those who entered the system after its approval (13/11/2019). For those who already contributed before that date, there are transition rules (points rule, toll rule). After retirement, basic retirement is based on age (65/62 years + 15 years of contribution) or due to incapacity (invalidity). The 20% plan also guarantees all other benefits (sickness benefit, maternity pay, death pension).
The self-employed person issues the GPS (Social Security Guide) monthly through the Meu INSS portal (gov.br) or through the SAL platform (Legal Accruals System). The GPS can be paid at any bank, lottery or internet banking until the 15th of the month following the accrual (if it falls on a non-working day, advance it). The GPS code for Individual Taxpayers is 1163 (no third-party discount).
The INSS ceiling in 2025 is $ 8.157,41 — o valor máximo de salário de contribuição utilizado na alíquota. Isso significa que um autônomo que fatura $ 20,000/month contributes a maximum of $ 8.157,41 (contribuição máxima de $ 1,631.48 in the 20% plan. The maximum INSS benefit is also limited to the ceiling, regardless of the amount contributed beyond this limit.
Yes. When a company (Legal Entity) hires an independent contractor (CPF) to provide services and issues an RPA (Receipt for Payment to Self-Employed), it is obliged to deduct 11% INSS from the value of the service (up to the ceiling) and collect it in the name of the professional. This discount is the self-employed person's contribution — they can top up to 20% on their own to be entitled to all the benefits.
Yes. INSS contributions paid by the self-employed (Individual Taxpayer) are deductible in the complete IRPF declaration, reducing the IR calculation basis. For example, if you paid $12,000 in INSS throughout the year, this amount can be subtracted from your taxable income, potentially reducing the IR payable or increasing the refund.
To retire by age (65 years for men, 62 years for women), it is necessary to have fulfilled the minimum waiting period of 180 months (15 years) of contributions to the INSS. The retirement amount will be calculated based on the average contribution wages (100% for the maximum contribution). Anyone who contributed through the 5% Plan (on the minimum wage) will have a pension equivalent to 1 minimum wage.
Discover Calculator Suite, the definitive platform for free online calculations. Our progressive web app offers more than 70 specialized calculators, from basic math tools to advanced calculators for finance, healthcare, construction and more.
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Your calculations remain private. We do not store personal data or usage history.
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Learn with detailed explanations of the formulas and calculation methods used.
Available Calculator Categories
🏠 Daily Calculators
BMI, age, tips, percentages, unit converters and much more.
💰 Financial Calculators
Loans, compound interest, investments, net salary, amortization.
Materials, painting, electricity, construction volumes and areas.
📊 Advanced Calculators
Matrices, linear regression, probabilities, descriptive statistics.
🌱 Environmental Calculators
Carbon emissions, water consumption, energy efficiency.
Technology and Innovation
PWA Application: Install as native app on your device Instale como app nativo no seu dispositivo
Offline Mode: Keep using even without internet connection Continue usando mesmo sem conexão com a internet
Responsive Design: Optimized for all screen sizes Otimizado para todos os tamanhos de tela
Multilingual Support: Available in Portuguese, English and Spanish Disponível em português, inglês e espanhol
Complete History: Save and export your calculations in JSON Salve e exporte seus cálculos em JSON
SEO Optimized: Easily find our calculators in search engines Encontre facilmente nossas calculadoras nos motores de busca
Total Accessibility: Keyboard navigation and screen readers Navegação por teclado e leitores de tela
Automatic Updates: Always with the latest features Sempre com as últimas funcionalidades
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Mathematical precision and compliance with official rules are essential pillars of our platform. The algorithms of our financial, labor, health and mathematical calculators are reviewed and validated based on official data sources (such as the Brazilian Federal Revenue, Ministry of Labor, World Health Organization and established scientific formulas). This ensures that you always get reliable and up-to-date calculations.
Privacy Policy
Last updated: November 8, 2025
This Privacy Policy describes how Suite Calculators collects, uses and protects your information when you use our web application.
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All calculations are performed locally on your device. We do not store or transmit the values entered in calculators to our servers.
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Last updated: November 8, 2025
Welcome to Suite Calculators. These terms of use govern the use of our online calculator web application.
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