Everyday tools, made for Sri Lanka
Free online tools for everyday life in Sri Lanka
Calculate salaries, bills and grades, or find Sri Lankan postal, GN and bank branch codes. Choose a tool and get the details you need.
Free to use. No sign-up or payment.
Quick starts
Popular starting points
Pick the question closest to yours and go straight to the answer.
There is more to explore
Tools for the different parts of life
Whether you are planning a budget, chasing a grade, running a small business, or checking a bill, start with the section that feels familiar.
Money matters
Make payday and repayments easier
Understand what comes in, what goes out, and what a financial decision may cost each month.
Explore all money toolsStudent life
Stay on top of grades and attendance
Turn marks, credits, and lecture counts into a simple next step you can act on.
Explore all student tools- Final Exam TargetCalculate exactly what you need to score on your final exam to achieve an A, B, or pass the module based on your assignment and mid-term marks.
- Attendance TrackerTrack attendance against the target in your faculty handbook and see how many sessions you can miss or need to attend.
- Target GPA EstimatorEstimate the GPA average needed across your remaining university credits.
Health and wellbeing
Check useful dates and everyday health numbers
Get a helpful estimate for planning while keeping important health limitations in view.
Explore all health toolsWork and business
Price work and plan costs with confidence
Useful starting points for invoices, payroll, freelance work, and day-to-day business decisions.
Explore all business toolsEveryday answers
Find local codes and solve everyday tasks
Look up Sri Lankan postal codes, GN Divisions and bank branch codes, or work out bills, dates, percentages and fuel costs.
Explore all everyday tools- Sri Lanka Bank & Branch FinderFind bank and branch codes by name, town or code, and browse branches by bank.
- Administrative Division FinderFind GN codes, DS Divisions and their district and province.
- Sri Lanka Postal Code FinderFind postal codes by city, town or post office in English, Sinhala or Tamil.
Why use HariTools?
Helpful answers without hidden details
Made for Sri Lanka
Local tax rules, tariffs, university needs, and LKR are built into the tools that need them.
Free and private
Use every calculator without payment or an account. Your calculator entries stay in your browser.
Clear calculation methods
Where rules matter, we show sources, review dates, assumptions, and practical limitations.
Recently reviewed
Tools checked against current sources
These regulated calculators include their source, effective date, method, and latest review date.
- Income Tax (APIT) CalculatorReviewed Effective: 1 April 2025 - IRD Table 01 for 2025/2026, latest listed on the IRD APIT tables page at review
- Electricity Bill (PUCSL)Reviewed Effective: 11 May 2026
- VAT & SSCL InvoiceReviewed Effective: VAT 18% and SSCL 2.5% from 1 January 2024; SSCL registration threshold lowered during 2026
Worth knowing
A little help for the bigger decisions
Plain-language guides for the rules and choices behind the numbers.
Before you start
A few things people ask us
Still looking for something? Tell us what would make HariTools more useful through the contact page.