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Every calculator ToolsNode plans to ship, grouped by category. Tools marked “Coming soon” aren't built yet — nothing here misrepresents an unfinished tool as usable.

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68 of 68 tools

Paper Weight (GSM) Converter
Convert paper weight between GSM, lb and points across paper categories, with an explicit parent-sheet basis.
Pixels to Print Size Calculator
Work out the maximum print size for an image at a target PPI, or the pixels you need for a given print size.
Print Bleed Calculator
Calculate trim, bleed and safe-area dimensions for a print job, including asymmetric bleed.
KDP Cover & Spine Calculator
Calculate full wraparound cover dimensions and spine width for a self-published paperback.
Label Roll Calculator
Estimate labels per roll, roll length and lane count from label size, core diameter and roll outer diameter.
Barcode Size & DPI Calculator
Check minimum barcode size and print DPI needed for reliable scanning, including QR error-correction and version.
Embroidery Thread Color Converter
Find the closest embroidery thread colors to a given color, by perceptual distance, across thread brands.
Embroidery Stitch Cost & Pricing Calculator
Price an embroidery job from stitch count, thread/backing cost and machine time, separate from the selling rate.
DTF Printing Cost Calculator
Estimate DTF transfer cost per unit from print area, film/ink/powder cost, reject-rate yield and press time.
Sublimation Size & Cost Calculator
Calculate sublimation print size ceiling and per-unit cost for a chosen product template.
Shopify Profit Calculator
See what a Shopify order actually contributes after product cost, fees, shipping, refunds and tax pass-through.
Shopify Transaction Fee Calculator
Break down Shopify payment processing and transaction fees by plan and see where the eligible base differs.
Etsy Fee & Profit Calculator
Calculate Etsy listing, transaction, payment processing and renewal fees against order profit.
Dimensional (Volumetric) Weight Calculator
Calculate a parcel's billable dimensional weight from its dimensions and carrier divisor.
Packaging Void Fill Calculator
Estimate the void-fill volume needed for a box after subtracting product volume from box volume.
Pallet & Box Arrangement Calculator
Calculate how many boxes fit per pallet layer and total load, with pallet height/tare and load-cap limits.
Break-Even ROAS Calculator
Find the break-even return on ad spend and allowable ad spend from margin, price and fees.
CPM, CPC & CTR Calculator
Convert between CPM, CPC, CTR, impressions, clicks and spend for a single ad scenario.
Influencer Fair Rate Calculator
Estimate a sponsorship rate range from expected views, engagement and usage-rights add-ons — not an authoritative price.
Amazon ACoS & TACoS Calculator
Calculate Amazon advertising ACoS and account-wide TACoS from ad spend, ad sales and total sales.
Instagram Downloader
Coming soon
Resolve a supported Instagram Reel, photo or carousel link and download permitted media through a verified integration.
Instagram Image Resizer
Coming soon
Resize and crop an image to common Instagram composition ratios without stretching or upscaling.
Instagram Carousel Splitter
Coming soon
Split a single panorama image into an ordered set of numbered Instagram carousel slides.
Instagram Reel Cover Maker
Coming soon
Crop and design a vertical Reel cover with optional text, using clearly illustrative preview guides.
Instagram Caption Formatter
Coming soon
Clean up line breaks and spacing in a caption and see grapheme, code-point and hashtag counts before you paste it.
Instagram Bio Formatter
Coming soon
Build a readable Instagram bio from name, role, value proposition and CTA lines, with a live character count.
Instagram Hashtag Organizer
Coming soon
Deduplicate, group and reorder pasted hashtags under a documented case-insensitive policy — no trend or popularity claims.
Instagram Engagement Rate Calculator
Calculate per-post or pooled Instagram engagement rate from manually entered interactions and your chosen denominator.
Instagram Follower Growth Calculator
Calculate net follower change, growth rate and average daily change between two manually entered counts.
Instagram UTM Link Builder
Coming soon
Build a clean UTM-tagged link for an Instagram bio or post, preserving existing query parameters and fragments.
Instagram AI Prompt Builder
Coming soon
Compose a structured prompt for your own AI tool — captions, Reel scripts, carousel outlines or bios. This tool never calls an AI model itself.
Instagram Content Planner
Coming soon
Plan an Instagram content calendar with drafts, hooks, CTAs and manual status — local storage only, no auto-posting.
Merge PDF Files
Combine multiple PDF files into one, in the order you choose. Processing happens entirely in your browser — files are never uploaded.
Split PDF Files
Extract specific pages or page ranges from a PDF into a new file. Processing happens entirely in your browser — files are never uploaded.
Rotate PDF Files
Rotate all or selected pages of a PDF by 90, 180 or 270 degrees. Processing happens entirely in your browser — files are never uploaded.
Add Watermark to PDF
Stamp text onto every page of a PDF with a custom color, opacity and angle. Processing happens entirely in your browser — files are never uploaded.
Delete PDF Pages
Remove specific pages or page ranges from a PDF and keep the rest, in order. Processing happens entirely in your browser — files are never uploaded.
Reorder PDF Pages
Rearrange a PDF's pages into any order you choose. Processing happens entirely in your browser — files are never uploaded.
Add Page Numbers to PDF
Stamp sequential page numbers onto every page of a PDF, with a choice of position, format and starting number. Processing happens entirely in your browser — files are never uploaded.
Edit PDF Metadata
View and change a PDF's title, author, subject and keywords. Processing happens entirely in your browser — files are never uploaded.
PDF to Images
Convert PDF pages into PNG or JPEG images, all or just the pages you choose. Processing happens entirely in your browser — files are never uploaded.
Compress PDF
Shrink a PDF by redrawing its pages as compressed images — best for scanned or photo-heavy documents. Processing happens entirely in your browser — files are never uploaded.
JPG to PDF
Turn JPG or PNG images into a PDF, one image per page. Processing happens entirely in your browser — files are never uploaded.
PDF to Text
Extract the plain text from a PDF's text layer, to copy or download as a .txt file. Processing happens entirely in your browser — files are never uploaded.
Extract Images from PDF
Pull the embedded photos and pictures out of a PDF as PNG files. Processing happens entirely in your browser — files are never uploaded.
Markdown to PDF
Turn Markdown into a formatted PDF — headings, lists, code blocks, tables and more. Processing happens entirely in your browser — nothing is ever uploaded.
Protect PDF with a Password
Add a password to a PDF with AES-256 encryption. Processing happens entirely in your browser — files and passwords are never uploaded.
QR Code Minimum Size & Distance Calculator
Calculate the smallest safe QR code print size for a scan distance, adjusted for QR version and error correction level.
Courier Girth & Oversized Shipping Calculator
Calculate a package's girth and combined length-plus-girth, and check it against USPS, UPS and FedEx oversize thresholds.
CBM & Ocean Container Loading Calculator
Calculate cargo CBM and how many 20ft, 40ft or 40ft High Cube containers it needs, using a realistic packing-efficiency factor.
TikTok Shop Seller Fee & Profit Calculator
Calculate TikTok Shop referral fees, affiliate commission, shipping subsidy and return allowance against real per-order profit.
Amazon FBA Size Tier & Storage Calculator
Classify a product into its Amazon FBA size tier from dimensions and weight, and estimate monthly cubic-foot storage cost.
YouTube RPM vs. CPM Ad Revenue Calculator
Calculate effective YouTube RPM from CPM, monetized impressions and total views, using the Partner Program's 55% revenue share.
Video Safe Zone Overlay Generator
Get pixel-accurate safe-zone margins for TikTok, Instagram Reels and YouTube Shorts UI overlays on a 1080×1920 video.
GSM to Thread Count (TC) Fabric Estimator
Estimate a fabric's marketed thread count from its GSM and weave type, and see how ply count inflates the marketed number.
PDF CMYK / RGB Color Space Checker
Scan a PDF's vector and text fill/stroke colors for RGB before sending it to print. Processing happens entirely in your browser.
Bulk In-Browser WebP Image Converter
Convert many JPG or PNG images to WebP at once with adjustable quality, processed in parallel by Web Workers in your browser.
McKee Box Compression (ECT to BCT) Calculator
Calculate a corrugated box's compression strength (BCT) from ECT, caliper and perimeter using the McKee formula, then apply a safety factor.
Freight Density & NMFC Class Calculator
Calculate shipment density in pounds per cubic foot and map it to the current 13-tier NMFC freight class scale.
Stripe Fee & Reverse Net Payout Calculator
Calculate Stripe processing fees forward from a charge, or reverse-solve the charge needed to net an exact payout.
eBay Seller Fee & Net Profit Calculator
Calculate eBay final value fees, per-order fees and optional Promoted Listings costs against real seller profit.
Screen Printing Mesh Count & Halftone LPI Calculator
Calculate the minimum screen mesh count for a halftone LPI using the 4.5x industry ratio, adjusted for ink chemistry.
Embroidery Machine Run Time & Bobbin Yardage Calculator
Calculate embroidery production time from stitch count, color changes and trims, plus top and bobbin thread yardage.
Email Click-to-Open Rate (CTOR) & Campaign ROI Calculator
Calculate email CTR and CTOR side by side, plus revenue per recipient and the cost of sending to an unengaged list.
LTV to CAC Ratio & Payback Period Calculator
Calculate LTV:CAC ratio and payback period in months, then check both against commonly cited SaaS health benchmarks.
PDF Page Dimensions & Box Inspector
Inspect a PDF's MediaBox, CropBox, BleedBox, TrimBox and ArtBox in points, inches and millimeters, entirely in your browser.
Video & Canvas Aspect Ratio Scaling Calculator
Solve a missing width or height at an exact ratio, or calculate letterbox/pillarbox padding to fit content without cropping.
Drink Nutrition Calculator
Build a hot, iced or frozen drink — Starbucks-style or otherwise — from milk, syrup, sweetener, toppings and espresso, and see calories, protein, sugar and caffeine update instantly.