Free Online Calculators & Utility Tools Fast, Private Math in Your Browser
AfriWidget exists to solve problems, simplify decisions, and make useful digital tools accessible to everyone. Calculate, check eligibility, compare options, and take action instantly with 120+ free, private browser tools.
Recently used
Continue Where You Left Off
Quickly return to tools you've recently used.
Featured tools
Most popular calculators
BMI / BMR / TDEE
Body composition, metabolism, daily energy.
GPA Calculator
Semester & cumulative GPA tracking.
Compound Interest
Model long-term investment growth.
WASSCE Aggregate
Tertiary admission aggregate points.
KCSE Grade (Kenya)
KCSE aggregate & KUCCPS tier.
Invoice Generator
Professional PDF invoices.
01 / Learn & qualify
Education & Admissions
GPA Calculator
Calculate semester GPA, cumulative GPA, and projected graduation performance on 4.0 and 5.0 scales.
Calculate GPA →WASSCE Aggregate
Compute your total aggregate for tertiary admission using core subjects and best three electives.
Calculate aggregate →KCSE Grade Calculator
Calculate 7-subject aggregate points (out of 84), mean grade, and KUCCPS placement standing.
Calculate KCSE →JAMB UTME Aggregate
Combine your UTME score and O'Level grades to estimate your aggregate admission score.
Calculate JAMB →02 / Plan ahead
Finance & Wealth
Compound Interest
Model investment growth with variable contributions, compounding frequency, and time horizon.
Calculate growth →Mortgage Calculator
Estimate monthly payments, total interest, and amortization schedule for any home loan.
Calculate mortgage →Loan Calculator
Determine monthly payments, total interest, and a full amortization breakdown.
Calculate loan →Savings Calculator
Project future savings with regular deposits and compound interest.
Project savings →03 / Know your numbers
Health & Wellness
BMI / BMR / TDEE
Understand body mass index, basal metabolic rate, and total daily energy expenditure.
Calculate metrics →Body Fat Calculator
Estimate body fat percentage using the U.S. Navy circumference method.
Calculate body fat →Daily Calorie Needs
Calculate your maintenance calories based on activity level and body metrics.
Calculate needs →Water Intake Calculator
Personalize your daily hydration goal based on weight, activity, and climate.
Calculate intake →04 / Get things done
Productivity Tools
Document Converter
Convert Word, PDF, JPG, PNG, WebP, and text in your browser with zero uploads.
Convert files →Invoice Generator
Create professional PDF invoices with line items, tax, discount, and currency selection.
Create invoice →Reading Time Estimator
Estimate silent reading and spoken presentation duration for any text.
Estimate time →Text Case & Cleanup
Convert case, clean lines, strip HTML, and copy polished text.
Convert text →QR Code Generator
Generate downloadable QR codes for URLs, text, and Wi-Fi credentials.
Generate QR →Job Scam Checker
Scan job adverts and recruiter offers for upfront fee traps, fake interviews, and fraud red flags.
Check job offer →Online Shop Scam Checker
Verify e-commerce websites and social media seller profiles with DNS checks and payment risk scoring.
Check online store →PDF & EXIF Remover
Strip EXIF tags, GPS coordinates, author properties, and hidden metadata locally for UK GDPR data minimisation.
Clean files →JSON Formatter
Validate, format, minify, and inspect JSON payloads with line numbers and copy.
Format JSON →05 / Run your business
Business & Freelance
Profit Margin Calculator
Calculate gross profit, net margin, and markup percentage from your product cost and selling price.
Calculate margin →Break-Even Calculator
Find the exact unit volume and revenue needed to cover fixed overhead and start earning a profit.
Find break-even →Payment Processor Fees
Compare transaction fees across PayPal, Stripe, and Square so you know your actual net payout.
Compare fees →Freelance Rate Calculator
Work out a sustainable hourly rate, day rate, and monthly retainer from your living costs and billable hours.
Calculate rate →About AfriWidget
AfriWidget exists to solve problems, simplify decisions, and make useful digital tools accessible to everyone.
AfriWidget was created from a passion for solving everyday problems through simple, accessible technology. The goal is to remove friction, save time, and help people make better decisions using practical tools that work instantly in the browser.
Many websites provide information, but AfriWidget focuses on helping people take action. Instead of reading long articles to find answers, users can use interactive tools to calculate, check eligibility, track progress, compare options, and get results immediately across education, finance, health, business, and productivity.
The core tools are available without a paid subscription or premium plan.
A large collection of calculators and utilities with more being added.
Use directly on any phone, tablet, or desktop without downloading an app.
Education, finance, health, business, productivity, and practical tools.
Frequently Asked Questions
Pick a tool and test your numbers
No login, no paywall, and no waiting. Just choose what you need below and get your answer in seconds.