Free Online Calculator | Currency (₹) | Percentage | Memory
✓ Currency - Indian Rupee (₹) formatter
✓ Number System - Lakhs, Crores format
✓ Percentage - GST, discount calculator
✓ Memory - Store & recall values
Memory • History • Currency • Keyboard Support
No history yet
Standard
1,00,000 (Indian)
Currency
₹1,00,000
Scientific
1.0e+5
Format numbers as Indian Rupees (₹) with proper comma placement following Indian number system (lakhs, crores). Perfect for shopping and billing.
Two types of percentage calculations: convert to percentage (÷100) and calculate percentage of number. Perfect for discounts, tax, GST, tips.
Store values in memory for complex calculations. View last 20 calculations in history. Click any history item to reuse the result.
A Standard Online Calculator is essential web-based arithmetic tool performing basic mathematical operations addition subtraction multiplication division accessible any device browser without downloads installations providing instant calculations everyday needs shopping budgeting finance homework business accounting personal calculations standard calculator performing fundamental arithmetic operations addition combining numbers subtraction finding difference multiplication repeated addition division splitting into parts supporting decimal numbers negative values continuous calculations chain operations perfect quick everyday calculations checking bills splitting expenses calculating totals managing budgets basic math operations currency calculator specialized Indian Rupee rupee formatter displaying results with rupee symbol comma separators following Indian number system convention lakhs one hundred thousand crores ten million matching how Indians naturally read write large numbers making calculations intuitive familiar perfect shopping calculating total purchase amount applying discounts billing invoicing customers budgeting monthly expenses salary calculations financial planning business accounting managing revenue expenses profit real estate calculations property prices rent agreements essential anyone dealing money transactions Indian context percentage calculator two distinct calculation methods percentage conversion dividing by hundred converting percentages decimal equivalents useful understanding proportions fractions decimal calculations percentage of number calculating specific percentage previous value essential discount calculations finding amount saved sales calculating tax GST amount goods services calculating tips restaurants service charges commission calculations business sales interest calculations loans savings practical everyday scenarios memory functions sophisticated value storage recall capabilities memory clear MC resetting stored value zero memory recall MR displaying current memory calculator memory plus M+ adding display memory accumulating totals running sums memory minus M- subtracting display memory useful adjustments corrections memory store MS saving current display replacing memory enabling complex multi-step calculations maintaining intermediate results building running totals perfect shopping adding multiple items accounting tracking multiple transactions calculations requiring value reuse making standard calculator indispensable daily life supporting diverse calculation needs unified accessible interface.
Our Free Standard Calculator 2025 offers exceptional features superior functionality three display formats covering diverse needs standard mode regular number display with comma separators following Indian convention making large numbers readable one thousand ten thousand one lakh ten lakhs one crore natural Indians currency mode specialized Indian Rupee formatting automatic rupee symbol proper comma placement decimal precision up two places matching currency conventions perfect financial calculations shopping bills invoices budgets salary calculations expense tracking business accounting scientific mode exponential notation very large very small numbers displaying format one-point-two-three e plus five useful scientific calculations engineering mathematics research technical work unique features memory functions complete implementation MC MR M+ M- MS enabling complex calculations storing intermediate values building running totals calculation history automatic tracking last twenty calculations every operation saved retrievable format showing full calculation operators result clickable history items instantly loading results calculator continuing calculations reviewing previous work verifying computations auditing calculation sequence percentage calculator two methods percentage conversion dividing hundred percentage of number calculating percentage previous value supporting discount calculations tax GST calculations tip calculations commission interest essential everyday financial calculations Indian number formatting automatic comma placement following Indian system lakhs crores making numbers instantly readable familiar Indians matching newspapers documents invoices government reports currency formatting automatic rupee symbol Indian decimal conventions proper placement matching banking financial standards copy clipboard one-click copying results instant pasting other applications documents spreadsheets emails reports eliminating manual typing transcription errors sign toggle switching between positive negative numbers useful subtraction using addition recording debts losses refunds mathematical operations negative numbers backspace function correcting typing mistakes deleting last digit without clearing entire display clear functions two types C clearing display keeping calculation AC clearing everything starting fresh error handling robust validation division by zero detection graceful error messages preventing crashes mobile responsive design flawless operation smartphones tablets desktops touch-friendly buttons readable displays adaptive layouts ensuring accessibility anywhere anytime making most versatile powerful user-friendly standard calculator available online completely free unlimited calculations no registration advertisements serving students homemakers shoppers business owners accountants professionals anyone needing reliable calculation tool updated 2025 standards modern technologies optimal performance exceptional user experience.
Calculate Discount: ₹5,000 shirt with 30% off
5000 → − → 30 → % of Number → Shows ₹1,500 discount → = → Final: ₹3,500
Shopping Total: Multiple items with memory
Item 1: ₹450 → MS → Item 2: ₹780 → M+ → Item 3: ₹1,200 → M+ → MR → Total: ₹2,430
Add 18% GST: ₹10,000 product + GST
10000 → + → 18 → % of Number → Shows ₹1,800 GST → = → Total: ₹11,800
Calculate Tax Amount: Find GST in total
Total ₹11,800 → ÷ → 118 → × → 18 → = → GST: ₹1,800
Monthly Budget: Track multiple expenses
Rent: ₹15,000 → MS → Groceries: ₹8,000 → M+ → Bills: ₹3,500 → M+ → MR → ₹26,500
Savings Calculation: Income minus expenses
Income: ₹50,000 → − → Expenses from memory (MR) → = → Savings: ₹23,500
Take-Home Salary: After deductions
Gross: ₹60,000 → − → PF: ₹7,200 → − → Tax: ₹5,000 → = → Net: ₹47,800
EMI Affordability: 40% of income rule
Income: ₹50,000 → × → 40 → ÷100 → = → Max EMI: ₹20,000
Memory functions store values for complex calculations: MS (store), MR (recall), M+ (add), M- (subtract), MC (clear). Example: Calculate (25×4) + (30×6) → 25×4=100 → MS → 30×6=180 → M+ → MR displays 280. Perfect for shopping totals, running sums, multi-step calculations.
Currency mode formats as ₹ (Indian Rupees) with lakhs/crores: Click 'Currency' button. Examples: 1000 = ₹1,000, 100000 = ₹1,00,000 (lakh), 10000000 = ₹1,00,00,000 (crore). All calculations work with automatic formatting. Perfect for shopping, billing, budgeting, salary, business accounting.
Two methods: 1) ÷100 button: Converts to percentage. Example: 50 → ÷100 → 0.5 (50%). 2) % of Number: Calculates percentage of previous number. Example: 200 → + → 10 → % of Number → 20 (10% of 200). Perfect for discounts (20% off ₹500 = ₹100), GST (18% on ₹1000 = ₹180), tips (15% on ₹800 = ₹120).
History tracks last 20 calculations automatically: Every calculation saved in format '5 + 3 = 8' or '₹1,000 × 2 = ₹2,000'. Click any history item to load result. Clear History button removes all. Works with all formats. Perfect for reviewing work, verifying calculations, reusing results, tracking sequence.
Indian number system uses unique comma placement for lakhs and crores: 1,000 (thousand), 10,000 (ten thousand), 1,00,000 (lakh = 100K), 10,00,000 (ten lakhs = 1M), 1,00,00,000 (crore = 10M). Different from Western 1,000,000. Currency mode: ₹1,00,000 (lakh rupees), ₹1,00,00,000 (crore rupees). Natural for Indians.
Discount: Enter price → − → discount% → % of Number → shows discount → = for final. Example: ₹5,000 - 20% → 5000 → − → 20 → % of Number → ₹1,000 discount → = → ₹4,000 final. Tax/GST: Amount → + → tax% → % of Number → shows tax → = for total. Example: ₹10,000 + 18% GST → shows ₹1,800 GST → = → ₹11,800 total.
C (Clear): Clears only display, keeps operation. For fixing typing errors. AC (All Clear): Clears everything, complete reset. For starting new calculation. Example: 25 + (error 789) → C → type 50 → continue. After calculation → AC → start fresh. Memory not affected by C or AC - use MC separately.
Sign toggle switches positive/negative: Enter 50 → +/− → -50. Click again → back to 50. Uses: Subtraction as addition (100 - 75 = 100 + (-75)), recording debts/losses, temperature conversions, mathematical operations. Example: ₹500 - ₹150 using addition → 500 → + → 150 → +/− → = → 350. Works with decimals and all operations.
Yes! Click copy icon (📋) next to display. Result instantly copied to clipboard. Paste anywhere: documents, spreadsheets, emails, forms. Works with all formats (clean number without symbols). Perfect for: accounting reports, expense tracking, invoicing, budgeting, data entry. No typing errors, instant transfer, maintains accuracy. Unlimited free copies!
100% free forever! All features free: Standard/Currency/Scientific modes, Memory functions (unlimited use), History (20 calculations), Percentage calculator (both types), Indian formatting, Copy to clipboard. No registration, login, payment, ads, downloads, limits. Works any device, browser. Free for everyone - students, shoppers, business, accountants, homemakers, professionals!
Our Free Standard Calculator 2025 is the most advanced user-friendly online calculation tool designed specifically for Indian users featuring standard arithmetic operations currency formatting with Indian Rupee symbol percentage calculator with two methods memory functions calculation history Indian number system formatting with lakhs crores completely free unlimited use no registration advertisements downloads serving students homemakers shoppers business owners accountants professionals anyone needing reliable accurate calculation tool updated 2025 standards modern web technologies optimal performance exceptional user experience perfect daily calculations shopping budgeting finance homework business accounting.