SEO Tools Calculators
Free browser-side SEO and marketing utilities — meta tag previews, schema markup generator, robots.txt builder, UTM link builder, SERP/OG previews, and SMS segment calculator.
Meta Title & Description Preview
Preview your page title and meta description in a realistic Google SERP mockup
Use calculatorRobots.txt Generator & Tester
Build and test robots.txt files with templates, custom rules, and path testing
Use calculatorSchema Markup Generator
Generate valid JSON-LD structured data for FAQ, Article, Product, and more
Use calculatorSERP & Open Graph Preview
Preview your page in Google, Facebook, and Twitter/X with character guidance
Use calculatorSMS & RCS Message Segment Calculator
Count SMS segments, detect GSM-7 vs Unicode encoding, and compare SMS vs RCS costs
Use calculatorUTM Builder
Build campaign tracking URLs with UTM parameters for analytics attribution
Use calculatorBrowse Other Categories
Age & Time
Calculate your exact age, countdown to birthdays, find birth days, and explore time-based calculations.
Body & Health
Track your BMI, BMR, body fat, ideal weight, and other key health metrics with our free calculators.
Finance
Plan your retirement, calculate mortgage payments, convert salaries, and reach your savings goals faster.
Business
Profit margins, break-even analysis, markup, ROI, LTV, CPA, SaaS MRR, startup runway, and ecommerce profitability calculators.
Measurements & Conversions
Convert between temperature, weight, volume, cooking, and length units instantly.
Lifestyle & Daily Tools
Optimize your sleep, hydration, nutrition, and daily energy expenditure with science-backed calculators.
Home & DIY
Estimate paint, flooring, concrete, and wall coverage for your home improvement projects.
EMS & Medical
IV drip rate, medication dosage, weight-based dose, and pediatric reference calculators for EMT and paramedic exam prep.
YouTube Creator Tools
Revenue, monetization, growth, and workflow calculators for YouTube creators — from RPM estimators to YPP eligibility trackers.
Social Media & Influencer
Earnings estimators, rate calculators, UGC pricing, engagement benchmarks, and influencer ROI tools for creators and brands across TikTok, Instagram, and beyond.
Amazon Seller Tools
Free browser-side utilities for Amazon sellers — listing title cleaner, search term optimizer, bullet point formatter, variation builder, and CSV column mapper.