Social
TikTok Engagement Rate Calculator
Calculate TikTok engagement rate from views, likes, comments, shares, and saves.
Free Web Toolbox
Useful tools,one card at a time.
Free calculators, generators, checkers, and planning tools people search for every day.
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Browse every tool
Social
TikTok Brand Deal Rate Calculator
Estimate a fair sponsored TikTok post rate from followers, engagement, niche, and usage rights.
Social
Instagram Engagement Rate Calculator
Calculate Instagram engagement rate by followers or reach for posts, reels, and carousels.
Video
YouTube RPM Revenue Calculator
Estimate YouTube revenue from views, RPM, Shorts mix, and sponsorship add-ons.
Video
YouTube Title Hook Grader
Score a YouTube title for clarity, curiosity, specificity, and scroll-stopping strength.
Social
Hashtag Set Builder
Build a balanced hashtag set from topic, audience, location, and platform.
Social
Best Posting Time Planner
Generate a weekly posting schedule by platform, time zone, and audience routine.
Social
Social Bio Generator
Write concise social bios in different tones with a clear audience promise.
Social
Viral Hook Score Calculator
Score a short-form video hook for curiosity, specificity, tension, and repeat-watch potential.
Commerce
TikTok Shop Commission Calculator
Estimate TikTok Shop affiliate commission after conversion rate, refund rate, and sample costs.
Pinterest Pin Title Generator
Generate keyword-rich Pinterest Pin titles with a clear visual-search angle.
Pinterest Board SEO Checklist
Audit a Pinterest board name, description, keywords, and pin mix for searchability.
Events
Wedding Budget Split Calculator
Split a wedding budget across venue, food, attire, photo, florals, music, and contingency.
Money
Rent vs Buy Calculator
Compare monthly renting with estimated homeownership costs and break-even time.
Money
Mortgage Affordability Snapshot
Estimate a home price range from income, debt, down payment, and rate.
Everyday
Tip Split Calculator
Split a restaurant bill with tax, tip, and uneven group sizes.
Money
Paycheck Take-Home Estimator
Estimate take-home pay from salary, pay frequency, pretax deductions, and a simple tax assumption.
Work
Freelance Hourly Rate Calculator
Calculate a sustainable freelance hourly rate from income goal, billable hours, taxes, and expenses.
Work
Invoice Late Fee Calculator
Calculate an invoice late fee from balance, annual rate, grace period, and days overdue.
Health
BMI Calculator
Calculate BMI from height and weight with a simple category note.
Health
Sleep Cycle Calculator
Find bedtime or wake-up options based on 90-minute sleep cycles.
School
GPA Calculator
Calculate weighted GPA across up to six classes.
School
Final Grade Calculator
Find the final exam score needed to reach a target course grade.
Career
Resume Bullet Polisher
Turn a plain responsibility into a stronger resume bullet with action, scope, and result prompts.
Career
Cover Letter Starter
Generate a clean cover-letter opening paragraph from role, company, proof, and motivation.
Developer
JSON Formatter and Validator
Format, minify, and validate JSON in the browser.
Developer
Base64 Encoder and Decoder
Encode text to Base64 or decode Base64 back to readable text.
Developer
Regex Tester
Test a regular expression against sample text with flags and matches.
Writing
Word Counter and Reading Time
Count words, characters, sentences, paragraphs, and estimated reading time.
Design
Color Contrast Checker
Check contrast ratio between text and background colors.
Security
Password Generator
Generate strong random passwords with length and character options.
Everyday
Date Difference Calculator
Calculate the number of days, weeks, months, and years between two dates.
Everyday
Age Calculator
Calculate exact age in years, months, and days for any date.
Business
Break-Even Calculator
Calculate how many units you need to sell to break even after fixed costs and variable costs.
Commerce
Etsy Profit Calculator
Estimate Etsy product profit after materials, shipping, platform fee estimate, and ad cost.
Home
Paint Calculator
Estimate gallons of paint needed from wall dimensions, coats, and coverage.
Home
Tile Calculator
Estimate tile quantity from area, tile size, and waste percentage.
Fun
Name Compatibility Calculator
Generate a playful compatibility score and shareable result from two names.
Converter
Celsius to Fahrenheit Converter
Convert temperature in celsius into deg F.
Converter
Fahrenheit to Celsius Converter
Convert temperature in fahrenheit into deg C.
Converter
Pounds to Kilograms Converter
Convert weight in pounds into kg.
Converter
Kilograms to Pounds Converter
Convert weight in kilograms into lb.
Converter
Miles to Kilometers Converter
Convert distance in miles into km.
Converter
Kilometers to Miles Converter
Convert distance in kilometers into mi.
Converter
Inches to Centimeters Converter
Convert length in inches into cm.
Converter
Centimeters to Inches Converter
Convert length in centimeters into in.
Converter
Feet to Meters Converter
Convert length in feet into m.
Converter
Meters to Feet Converter
Convert length in meters into ft.
Converter
Yards to Meters Converter
Convert length in yards into m.
Converter
Meters to Yards Converter
Convert length in meters into yd.
Converter
Ounces to Grams Converter
Convert weight in ounces into g.
Converter
Grams to Ounces Converter
Convert weight in grams into oz.
Converter
Cups to Tablespoons Converter
Convert cups into tbsp.
Converter
Tablespoons to Cups Converter
Convert tablespoons into cups.
Converter
Teaspoons to Milliliters Converter
Convert teaspoons into mL.
Converter
Milliliters to Teaspoons Converter
Convert milliliters into tsp.
Converter
Liters to Gallons Converter
Convert liters into gal.
Converter
Gallons to Liters Converter
Convert gallons into L.
Converter
Acres to Square Feet Converter
Convert acres into sq ft.
Converter
Square Feet to Acres Converter
Convert square feet into acres.
Converter
Square Feet to Square Meters Converter
Convert square feet into sq m.
Converter
Square Meters to Square Feet Converter
Convert square meters into sq ft.
Converter
Miles Per Hour to Kilometers Per Hour Converter
Convert speed in mph into km/h.
Converter
Kilometers Per Hour to Miles Per Hour Converter
Convert speed in km/h into mph.
Converter
Megabytes to Gigabytes Converter
Convert megabytes into GB.
Converter
Gigabytes to Megabytes Converter
Convert gigabytes into MB.
Converter
Mbps to MB Per Second Converter
Convert megabits per second into MB/s.
Converter
MB Per Second to Mbps Converter
Convert megabytes per second into Mbps.
Converter
Watts to Kilowatts Converter
Convert watts into kW.
Converter
Kilowatts to Watts Converter
Convert kilowatts into W.
Converter
Horsepower to Watts Converter
Convert horsepower into W.
Converter
Watts to Horsepower Converter
Convert watts into hp.
Converter
PSI to Bar Converter
Convert psi into bar.
Converter
Bar to PSI Converter
Convert bar into psi.
Converter
Inches to Feet Converter
Convert inches into ft.
Converter
Feet to Inches Converter
Convert feet into in.
Converter
Minutes to Hours Converter
Convert minutes into hours.
Converter
Hours to Minutes Converter
Convert hours into min.
Converter
Days to Weeks Converter
Convert days into weeks.
Converter
Weeks to Days Converter
Convert weeks into days.
Money
Annual Salary to Hourly Rate Calculator
Convert annual salary into an hourly rate.
Money
Hourly to Annual Salary Calculator
Estimate annual salary from hourly pay.
Money
Monthly Budget Percentage Calculator
Find what percentage of income a spending category uses.
Money
Emergency Fund Calculator
Estimate an emergency fund target from monthly expenses.
Money
Savings Goal Monthly Deposit Calculator
Calculate the monthly deposit needed to hit a savings goal.
Money
Credit Card Payoff Calculator
Estimate payoff time from balance, APR, and monthly payment.
Money
Loan Payment Calculator
Estimate a monthly loan payment.
Money
Simple Interest Calculator
Calculate simple interest on a principal amount.
Money
Compound Interest Calculator
Estimate compound growth over time.
Money
Discount Calculator
Calculate sale price after a discount.
Money
Sales Tax Calculator
Calculate tax and final price.
Money
Price Per Unit Calculator
Compare cost per unit.
Money
Subscription Annual Cost Calculator
Turn monthly subscriptions into annual cost.
Money
Inflation Adjusted Price Calculator
Estimate a price after inflation.
Money
Car Payment Calculator
Estimate an auto loan payment.
Money
Gas Cost Calculator
Estimate fuel cost from distance and MPG.
Money
Debt Extra Payment Savings Calculator
Estimate how much extra payments increase monthly debt paydown.
Money
Net Worth Calculator
Calculate net worth from assets and debts.
Money
50 30 20 Budget Calculator
Split income into needs, wants, and savings.
Money
Hourly Raise Difference Calculator
Estimate annual income change from an hourly raise.
Money
Side Hustle Profit Calculator
Estimate side-hustle profit after costs and taxes.
Money
Ad RPM Revenue Calculator
Estimate ad revenue from pageviews and RPM.
Money
Affiliate EPC Calculator
Calculate earnings per click.
Money
Cash Back Calculator
Calculate cash back rewards from spending.
Money
Tip Out Calculator
Estimate tip-out amount and remaining tips.
Home
Flooring Calculator
Estimate flooring material needed with waste.
Home
Wallpaper Calculator
Estimate wallpaper rolls from wall area and roll coverage.
Home
Concrete Slab Calculator
Estimate concrete cubic yards for a slab.
Home
Mulch Calculator
Estimate mulch cubic yards.
Home
Garden Soil Calculator
Estimate soil volume for raised beds.
Home
Fence Cost Calculator
Estimate fence project cost from linear feet.
Home
Deck Board Calculator
Estimate deck boards needed.
Home
Lawn Mowing Time Calculator
Estimate lawn mowing time.
Home
Moving Box Calculator
Estimate moving boxes needed.
Home
Appliance Energy Cost Calculator
Estimate monthly electricity cost.
Home
Curtain Width Calculator
Estimate curtain panel width for fullness.
Home
Rug Size Estimator
Estimate rug area from dimensions.
Home
Pool Volume Calculator
Estimate pool gallons.
Home
Gravel Calculator
Estimate gravel cubic yards.
Home
Drywall Sheet Calculator
Estimate drywall sheets needed.
Home
HVAC BTU Room Estimator
Estimate BTU needs from room size.
Home
Light Bulb Energy Cost Calculator
Estimate light bulb electricity cost.
Home
Stair Rise Calculator
Estimate stair riser height.
Home
Driveway Sealer Calculator
Estimate driveway sealer gallons.
Home
Roofing Bundle Calculator
Estimate shingle bundles from roof squares.
Health
Water Intake Calculator
Estimate daily water intake from body weight.
Health
Protein Intake Calculator
Estimate protein target from body weight.
Health
Calorie Deficit Calculator
Estimate weekly deficit from daily calories.
Health
Running Pace Calculator
Calculate running pace from distance and time.
Health
Running Time Calculator
Estimate finish time from distance and pace.
Health
Steps to Miles Calculator
Estimate miles from step count.
Health
Miles to Steps Calculator
Estimate steps from miles and stride length.
Health
Heart Rate Zone Calculator
Estimate heart-rate training zones.
Health
Macro Split Calculator
Split calories into protein, carbs, and fat.
Health
Navy Body Fat Calculator
Estimate body fat using a circumference formula.
Beauty
Skincare Routine Cost Calculator
Estimate monthly skincare routine cost.
Beauty
Makeup Cost Per Wear Calculator
Calculate cost per use for makeup.
Beauty
Hair Color Maintenance Cost Calculator
Estimate annual hair color maintenance cost.
Beauty
SPF Reapplication Time Calculator
Estimate how many sunscreen applications you need.
Health
Caffeine Limit Calculator
Estimate caffeine remaining after drinks.
Health
Workout Volume Calculator
Calculate lifting volume.
Health
One Rep Max Calculator
Estimate one-rep max using reps and weight.
Health
Walking Calories Calculator
Estimate calories burned walking.
Health
Cycling Calories Calculator
Estimate cycling calories from METs.
Health
Sleep Debt Calculator
Estimate weekly sleep debt.
Social
Instagram Reel Completion Rate Calculator
Calculate Reel completion rate.
Social
Reel Save Rate Calculator
Calculate saves per reach.
Social
TikTok Watch Time Calculator
Estimate total watch time from views and average watch duration.
Video
YouTube CTR Calculator
Calculate click-through rate.
Video
YouTube Watch Time Hours Calculator
Estimate watch hours.
Social
Creator CPM Deal Calculator
Estimate sponsorship value from views and CPM.
Social
Newsletter Subscriber Value Calculator
Estimate monthly subscriber value.
Social
Podcast Download Revenue Calculator
Estimate ad revenue from podcast downloads.
Social
Livestream Tip Goal Calculator
Estimate viewers needed to hit a tip goal.
Social
Influencer Media Kit Rate Calculator
Estimate a media kit rate from reach and CPM.
Social
Link In Bio CTR Calculator
Calculate link-in-bio click-through rate.
Social
Story View Rate Calculator
Calculate story view rate from followers.
Social
Carousel Save Rate Calculator
Calculate carousel save rate.
Social
Pinterest Pin CTR Calculator
Calculate Pin click-through rate.
Social
Email Open Rate Calculator
Calculate email open rate.
Social
Email Click Rate Calculator
Calculate email click rate.
Social
Social Ad CPC Calculator
Calculate social ad cost per click.
Social
Social Ad CPA Calculator
Calculate social ad cost per action.
Social
Creator Content Batch Time Calculator
Estimate time to produce a content batch.
Social
UGC Package Price Calculator
Price a UGC content package.
Ecommerce
Shopify Profit Calculator
Estimate product profit after costs and fees.
Ecommerce
Amazon FBA Profit Snapshot
Estimate Amazon product profit after fees.
Business
ROAS Calculator
Calculate return on ad spend.
Business
CAC Calculator
Calculate customer acquisition cost.
Business
LTV Calculator
Estimate customer lifetime value.
Business
Gross Margin Calculator
Calculate gross margin.
Business
Markup Calculator
Calculate price from cost and markup.
Business
Inventory Turnover Calculator
Calculate inventory turnover.
Business
Reorder Point Calculator
Estimate reorder point.
Business
Lead Conversion Rate Calculator
Calculate lead conversion rate.
Business
Sales Commission Calculator
Calculate sales commission.
Business
SaaS MRR Calculator
Calculate monthly recurring revenue.
Business
Churn Rate Calculator
Calculate customer churn rate.
Business
Burn Rate Runway Calculator
Estimate startup runway.
Business
Meeting Cost Calculator
Estimate the labor cost of a meeting.
Business
Employee Cost Calculator
Estimate loaded employee cost.
Business
Contractor vs Employee Cost Calculator
Compare contractor cost with loaded employee cost.
Ecommerce
Print On Demand Profit Calculator
Estimate profit per product.
Ecommerce
Shipping Cost Per Order Calculator
Calculate average shipping cost per order.
Ecommerce
Return Rate Calculator
Calculate ecommerce return rate.
Ecommerce
Average Order Value Calculator
Calculate average order value.
Business
Conversion Rate Calculator
Calculate website conversion rate.
Business
Landing Page Revenue Calculator
Estimate revenue from landing-page traffic.
Business
Ad Budget Pacing Calculator
Check daily ad budget pacing.
Business
Break Even ROAS Calculator
Calculate break-even return on ad spend from margin.
School
Study Time Planner
Estimate study hours per day.
School
Assignment Grade Weight Calculator
Calculate weighted assignment contribution.
School
Scholarship Deadline Planner
Plan required applications per week.
School
Reading Pages Per Day Calculator
Calculate daily pages needed.
School
Essay Word Goal Planner
Plan daily word count.
Productivity
Pomodoro Session Calculator
Estimate Pomodoro sessions from work time.
Productivity
Meeting Agenda Time Split Calculator
Split meeting time across agenda items.
Career
Commute Time Cost Calculator
Estimate the time value of commuting.
Career
PTO Value Calculator
Estimate paid time off value.
Career
Interview Prep Time Planner
Plan interview prep time.
School
Course Attendance Percentage Calculator
Calculate course attendance percentage.
School
Class Absence Limit Calculator
Estimate absences still available.
School
Tutor Session Cost Calculator
Estimate tutoring cost.
Career
Certification Study Hour Calculator
Plan weekly certification study hours.
School
Flashcard Review Time Calculator
Estimate flashcard review time.
Productivity
Typing Speed Calculator
Calculate words per minute.
Productivity
Words Per Minute Practice Calculator
Estimate writing pace.
Productivity
Focus Block Capacity Calculator
Estimate focus blocks available in a day.
Travel
Road Trip Fuel Cost Calculator
Estimate road trip gas cost.
Travel
Hotel Cost Split Calculator
Split hotel cost by people.
Travel
Vacation Savings Calculator
Calculate monthly savings needed for a trip.
Events
Party Drink Calculator
Estimate drinks needed for an event.
Events
Pizza Party Calculator
Estimate pizzas needed.
Everyday
Coffee Cost Calculator
Estimate monthly coffee spending.
Everyday
Laundry Cost Calculator
Estimate laundry cost.
Everyday
Pet Food Cost Calculator
Estimate monthly pet food cost.
Everyday
Baby Formula Cost Calculator
Estimate monthly formula cost.
Events
Event Capacity Calculator
Estimate room capacity by square footage.
Events
Catering Cost Calculator
Estimate catering cost.
Everyday
Parking Cost Calculator
Estimate parking cost.
Travel
Taxi Fare Split Calculator
Split taxi or rideshare fare.
Events
Event Table Calculator
Estimate tables needed from guest count.
A fast library of free web tools with searchable cards, standalone landing pages, and signup-gated favorites. Find free online calculators, unit converters, social media calculators, home project estimators, business profit tools, school planners, career calculators, health reference tools, writing utilities, developer tools, and everyday planning helpers. Each tool is designed to open quickly, work in the browser, and give a clear answer without extra setup.