ගණන් ගන්න / ganan-ganna
Free calculators & document tools for Sri Lanka. No sign-up needed.
Create professional bilingual LKR invoices with LankaQR, VAT/SSCL, and 1-tap WhatsApp share.
Dealers say 12% flat. But calculated honestly, what are you actually paying on your loan?
Small Business & Trade
Bilingual LKR invoices with VAT/SSCL, bank details, PDF download and WhatsApp share.
Trilingual business cards with a QR contact code, PNG download, .vcf file and WhatsApp share.
Materials + labor + overhead → unit cost and selling price for multiple products.
Cost vs selling price → profit, margin % and markup % in seconds.
Net salary with 8% employee EPF, 12% employer EPF, 3% ETF and downloadable payslip.
APIT tax on your monthly salary, from the IRD's 2025/26 table.
Sale price, savings and reverse-discount math in one tap.
What to charge per hour from your monthly target and billable hours.
WhatsApp-ready price-list graphics for your status and stories.
Personal Finance, Loans & Daily
Vehicle lease installments and loan EMI, flat vs reducing rate comparison.
Home loan EMI, private bank (reducing) vs state bank (equal capital).
Personal loan EMI, total interest and the cash you'll actually get.
Fixed deposit returns with WHT, monthly payout or at-maturity.
Foreign currency to LKR with your bank's own rate, no live feed, no surprises.
Trip fuel cost from distance, mileage and pump price.
Split group trip costs and settle up with the fewest transfers.
Daily Central Bank exchange rates, AWPR loan benchmark, T-bill yields, ASPI and fuel prices.
Convert Lakhs, Crores, Millions and Billions instantly with cheque amount-in-words.
Learn how to format invoices, collect bank payments via WhatsApp, and quotation standards for Sri Lanka.