Business, Tax, Image Dimension & Print DPI Calculators
14 toolsCalculate Indian GST slabs, TDS deductions, profit margins, freelance hourly rates, employee CTC, pixel dimensions, aspect ratios, and physical print DPI.
Browse Calculators by Workflow
Select a specialized workflow or explore the organized collections below.
Image Dimension, Aspect Ratio & Print DPI Calculators
Design & PrintCompute exact pixel dimensions, proportional aspect ratios, uncompressed memory footprint, and physical print dots-per-inch.
Image Size Calculator
Work out pixel dimensions, megapixels and estimated file size before exporting.
Aspect Ratio Calculator
Find matching width and height values for 16:9, 4:3, 1:1 or any custom ratio.
DPI Calculator
Calculate required pixel dimensions and effective physical print resolution.
GST, Tax & Discount Calculators
Tax & RetailCalculate CGST, SGST, and IGST splits, reverse-calculate inclusive tax, check MRP retail discounts, and compute TDS deductions.
GST Calculator
Calculate GST amounts with CGST, SGST and IGST split for all official tax slabs.
GST Inclusive / Exclusive Calculator
Reverse-calculate base price from MRP or add GST to an exclusive price.
MRP → Discount → GST Calculator
Calculate customer final payable price from MRP through discount and GST.
TDS Calculator
Calculate Indian TDS deductions under Section 194C, 194J, 194I, 194H and net payout.
Profit Margin, Pricing & Compensation Calculators
Business FinanceDetermine gross margin vs markup, tiered wholesale pricing, sustainable freelance hourly billing rates, and total employer cost-to-company (CTC).
Profit Margin Calculator
Calculate gross profit, margin percentage and markup from cost and selling price.
Wholesale Price Calculator
Calculate volume wholesale pricing, supplier profit and retailer margin.
Freelance Hourly-Rate Calculator
Determine a sustainable hourly, daily and project rate based on income goals and expenses.
Salary-to-Cost Calculator
Calculate real employer Cost to Company (CTC), factoring in PF, ESI, gratuity and overheads.
Additional Calculators
More purpose-built utilities for calculators workflows.
What are Calculators useful for?
Accurate math is essential whether you are pricing retail inventory, filing monthly GST returns, quoting freelance projects, or preparing high-resolution artwork for commercial printing. Relying on manual spreadsheet formulas often introduces costly rounding errors or broken cell references.
ToolBuddy Calculators combine two essential domains in one instant, browser-native suite: precision media and print calculators for designers and photographers, and verified Indian financial, tax, and pricing calculators for small businesses and independent professionals.
Every calculator updates in real time as you type, displaying clear intermediate breakdowns, formulas, and practical reference tables with zero server round-trips.
Why ToolBuddy excels
- Zero Cloud Latency: Tasks run at local hardware speed without server queues or slow upload bars.
- Private & Compliant: Confidential files never leave your device, satisfying strict privacy standards.
- No Paywalls: Unlimited free conversions and calculations without watermarks or forced registrations.
Key Calculator Reference Matrix
Select the right calculator for your design, print, or financial task:
Aspect Ratio Calculator
Video frames, responsive containers, and cropping
Finds the greatest common divisor (GCD) and computes missing width or height for any ratio
Prevents stretched or squished images across 16:9, 4:5, and 1:1 layouts
DPI Calculator
Print photography, posters, and brochures
Divides pixel dimensions by physical inches/centimeters to determine print PPI
Confirms whether an image meets the 300 DPI commercial print standard
GST Calculator
Indian invoicing and tax verification
Computes forward (exclusive) and reverse (inclusive) GST across all slabs
Eliminates reverse-tax rounding errors on B2B and B2C bills
Profit Margin Calculator
Retail and SaaS product pricing
Computes gross profit margin percentage alongside markup percentage
Clarifies the crucial mathematical difference between margin and markup
How to Use Our Calculators for Accurate Planning
Follow this sequential procedure for optimal performance and professional results.
Enter Base Values or Dimensions
Input your known metrics — whether pixel width/height for design assets or base cost/MRP for commercial products.
Review Live Breakdowns & Formulas
Inspect the instant tabular breakdown showing exact proportions, tax splits (CGST/SGST/IGST), or net profit margins.
Copy Results or Export to Downstream Tools
Use the calculated pixel dimensions directly in Resize Image, or bring your verified GST and margin figures straight into GST Invoice Generator.
Pro Tips for Design & Financial Calculations
Actionable tips to help you avoid common mistakes and get maximum utility.
300 DPI is the Print Gold Standard
For crisp commercial printing viewed at arm's length, divide your pixel width by 300 to find the maximum recommended print width in inches (e.g. 3000px ÷ 300 = 10 inches).
Never Confuse Margin with Markup
A 50% markup on a ₹100 item yields a ₹150 selling price, which equals a 33.33% gross profit margin — not 50%. Always verify both metrics before offering volume discounts.
Reverse GST Requires Division, Not Subtraction
To extract 18% GST from a ₹1,180 GST-inclusive price, divide by 1.18 (giving ₹1,000 base), never subtract 18% of ₹1,180.
Instant In-Browser Calculations
All financial figures, salary numbers, and resolution metrics execute instantaneously on your local machine with zero network latency or server logging.
Frequently Asked Questions about Calculators
Common questions regarding usage, privacy, and technical specifications.
What is an aspect ratio?
An aspect ratio is the proportional relationship between an image's width and height (e.g. 16:9 for widescreen video, 1:1 for squares, and 4:5 for vertical Instagram portraits).
How many pixels do I need for an A4 print at 300 DPI?
A standard A4 sheet measures 8.27 × 11.69 inches (210 × 297 mm). At 300 DPI, you need an image measuring 2480 × 3508 pixels for edge-to-edge sharp printing.
How do you calculate GST backwards from an inclusive MRP?
Use the formula: Base Price = Inclusive Price ÷ (1 + GST Rate/100). Our GST Inclusive/Exclusive Calculator performs this automatically and shows the exact CGST and SGST components.