UD5 Toolkit
Recipe Cost Calculator β Price Per Serving & Ingredient
Add ingredients with purchase prices and quantities used to calculate the total cost of a recipe and cost per serving. Perfect for meal prepping on a budget.
All Tools
999+ toolsBuffet Food Estimator β How Much Food Per Person
Calculate how many pounds or trays of each food type you need for a self-serve buffet. Covers proteins, sides, salads, and desserts based on head count.
Party Drink Calculator β Soda, Beer & Cocktails for Any Crowd
Plan the right amount of drinks for your party based on guest count and duration. Avoid running out or overspending on soda, beer, wine, and cocktails.
Wedding Playlist Time Calculator β Music for Ceremony & Reception
Build your wedding timeline by adding songs and their durations. See exactly how much music you need for cocktail hour, dinner, and dancing to schedule the perfect day.
Home Equity Loan & HELOC Payment Calculator
Estimate monthly payments and borrowing capacity for a home equity loan or line of credit. Input your home value, mortgage balance, and credit score range.
Early Auto Loan Payoff Calculator β Save on Interest
Calculate how much you'll save by paying off your car loan early. Add extra monthly or one-time payments and see the new payoff date and total interest saved.
Baby Food Introduction Tracker β Solids & Allergen Log
Log each new food you introduce to your baby. Track the date, food type, and any reactions to easily identify allergens and follow a safe weaning schedule.
Earned Value Management Calculator β EV, PV, AC, CPI, SPI
Monitor project performance with earned value analysis. Calculate EV, PV, AC, CPI, and SPI to see if your project is on budget and on schedule.
Critical Path Method (CPM) Calculator β Project Scheduling
Enter project tasks with durations and dependencies to calculate the critical path, earliest/latest start times, and total float. Keep your project on track.
Invoice Late Fee Calculator β Flat Fee & Monthly Interest
Calculate fair late fees on overdue invoices. Set a flat fee, monthly interest rate, or both, and see how much extra your client owes for paying after the due date.
Student Loan Deferment & Forbearance Calculator
See how pausing your student loan payments through deferment or forbearance affects total interest and payoff date. Compare to continued partial payments.
Contraction Timer β Track Labor Contraction Duration & Frequency
Press a button at the start and end of each contraction to log duration and frequency. Easily see when contractions become regular and it's time to go to the hospital.
Fetal Movement Kick Counter β Daily 10βMove Tracker
Count your baby's kicks each day with a simple tap counter and timer. Helps pregnant individuals monitor fetal wellbeing according to medical guidelines.
International Stamp Price Calculator β Letter Postage by Country
Calculate the number of stamps or exact postage needed to send a letter or postcard from the US to any other country. Includes USPS Global Forever stamp info.
Household Water Usage Calculator β Gallons per Activity
Estimate your daily and monthly household water consumption. Breaks down usage by showers, toilets, faucets, laundry, and outdoor watering to find savings.
Garden Insect Pest Identifier β Visual Damage & Symptoms
Identify common garden pests by the damage they leave on leaves, stems, and fruits. Browse photos and descriptions to find organic control methods.
Chinchilla Dust Bath Schedule β Frequency & Duration Guide
Learn how often and how long to give your chinchilla a dust bath based on humidity and season. Keep their fur clean and healthy without overdrying skin.
Hedgehog Wheel Size Calculator β Safe Running Surface
Find the minimum safe wheel diameter for your pet hedgehog to prevent back injuries. Input your hedgie's length to get a wheel size recommendation.
Reptile UVB Distance Calculator β Basking Spot Optimization
Calculate the proper distance between a UVB bulb and your reptile's basking spot. Match bulb strength (T5, T8) to species UVI zone for optimal vitamin D3 synthesis.
Parrot Daily Calorie Calculator β Seed, Pellet & Fresh Diet
Determine the daily calorie intake for your parrot based on species and activity level. Convert calories into portions of pellets, seeds, and fresh fruits/veggies.
Lizard Age to Human Years β Bearded Dragon, Gecko & Iguana
Convert your lizard's age to a comparable human age. Covers popular pet species like bearded dragons, leopard geckos, and iguanas with life stage notes.
Snake Age Converter β Python, Corn Snake & Boa to Human Years
Translate your pet snake's age into human years. Select common species like ball python or corn snake for a rough human-age equivalent and life expectancy.
Parrot Age to Human Years Converter β Budgie, Cockatiel & Macaw
Convert your parrot's age into equivalent human years based on species-specific lifespan data. Covers budgies, cockatiels, African greys, macaws, and more.
Kayak Paddle Length Calculator β Your Height & Boat Width
Determine the correct paddle length for kayaking. Uses your height and kayak width to suggest the ideal shaft length for comfort and efficiency on the water.
Mountain Bike Gear Ratio Calculator β Chainring & Sprocket
Compare mountain bike gear ratios and gear inches. Input your chainring and cassette teeth to find the perfect gearing for climbing or speed.
Snowshoe Size Guide β Weight & Terrain Recommendation
Select the right snowshoe size by entering your total weight (including gear) and the typical snow conditions. Ensures proper floatation on your winter hikes.
Ski Pole Length Calculator β Alpine, Nordic & Touring
Find your optimal ski pole length based on your height and skiing discipline (downhill, skate skiing, classic). Avoid buying poles that are too long or short.
Tent Size Calculator β How Many People Fit Comfortably?
Find the right tent size for your group. Converts person count to recommended floor area and dimensions, accounting for gear storage and comfort.
Audio Recording Time Calculator β File Size & Bitrate Estimator
Estimate how much audio you can record given storage capacity and bitrate, or figure out the file size of a recording of a given length and quality.
BPM to Delay & Reverb Time Calculator β Music Production
Convert BPM to milliseconds for delay, reverb pre-delay, and LFO rates. Quickly get 1/4, 1/8, dotted, and triplet note timings for perfect audio sync.
Musical Scale Finder β Show Me a Scale on Piano
Choose a root note and scale type to see the scale notes highlighted on a piano keyboard. Covers major, natural minor, harmonic minor, and modes.
Reverse Chord Finder β Name That Chord from Notes
Input the notes you're playing and get all possible chord names, including inversions and slash chords. A lifesaver for songwriters and music theorists.
Musical Interval Identifier β Ear Training & Theory Tool
Select two notes to instantly name the musical interval between them. Displays semitone count and common enharmonic spellings. Essential for music theory students.
Note Duration Calculator β BPM to Milliseconds & Seconds
Convert BPM (beats per minute) to note durations in milliseconds or seconds. See whole, half, quarter, eighth, sixteenth, and triplet values for precise music production.
Vegan & Vegetarian Ingredient Filter β Check Food Labels
Paste an ingredient list to instantly flag potential animal-derived components. Perfect for new vegans or anyone with dietary preferences checking product labels.
EU to US Clothing Size Converter β Dresses, Shirts & Pants
Convert European clothing sizes to US equivalents. Includes women's dresses, men's shirts, pants waist, and general tops with measurement guidance.
UK to US Shoe Size Converter β Men, Women & Kids
Easily convert UK shoe sizes to US sizes (and vice versa) for men, women, and children. Avoid ordering the wrong size when shopping internationally.
User Journey Map Maker β Simple UX Template Online
Build a visual user journey map with stages, actions, emotions, and pain points. A lightweight tool for UX designers and product managers to align teams.
Box Plot Generator β Five-Number Summary & Outliers
Generate a box-and-whisker plot from your dataset. Automatically computes min, Q1, median, Q3, max, and identifies potential outliers for statistical analysis.
Sphere Volume & Surface Area Calculator β V = 4/3ΟrΒ³
Compute the volume and surface area of a sphere from its radius or diameter. Instant results with units for math assignments and real-world ball sizing.
Cups to Grams Converter β Baking Ingredients Weight
Convert US cups to grams for common baking ingredients including flour, sugar, butter, and more. Get accurate measurements for consistent baking results.
5β4β3β2β1 Grounding Technique β Interactive Guide
A guided, stepβbyβstep walkthrough of the 5β4β3β2β1 grounding exercise for anxiety. Prompts you to notice sights, sounds, and sensations to stay present.
Rabbit Age to Human Years Converter β Bunny Life Stage
Find out how old your rabbit is in human years. Understand the difference between a 6-month-old bunny and a senior rabbit in terms of human life stage.
Audio Bitrate Calculator β Uncompressed & Compressed Formats
Calculate the bitrate of uncompressed audio (PCM) or compare it to compressed formats like MP3 and AAC. Understand the data rate for your audio files.
Postal Volumetric Weight Calculator β DIM Factor for Shipping
Calculate the chargeable weight of a package for courier services like UPS, FedEx, and DHL. Enter dimensions and actual weight to see volumetric weight and shipping cost estimate.
Bar Chart Maker β Vertical & Horizontal Column Graphs
Create vertical or horizontal bar charts from your data. Enter categories and values to generate a clean, customizable chart ready for presentation use.
Scatter Plot Generator β Interactive X,Y Data Graphing
Create an interactive scatter plot from your own data. Add points, adjust axes, and see the trend line β all done locally in your browser with SVG/Canvas.
GCD & LCM Calculator β Greatest Common Divisor & Least Common Multiple
Find the greatest common divisor and least common multiple of two or more numbers. Uses prime factorization and Euclidean algorithm with step-by-step output.
Trigonometry Calculator β Sin, Cos, Tan & Inverse Functions
Compute sine, cosine, tangent, and their inverses. Input degrees or radians to instantly get exact values or decimal approximations for any angle.
Ellipse Area Calculator β Ο Γ a Γ b Formula
Find the area of an ellipse (oval) from its semi-major and semi-minor axes. Includes circumference approximation for a complete geometric analysis.
Trapezoid Area Calculator β Bases, Height & Median Formula
Calculate the area of a trapezoid using parallel sides and height. Also finds the median length. Useful for land area estimation and geometry homework.
Density Calculator β Find Mass, Volume or Density Ο=m/V
Calculate density, mass, or volume of a material. Input two known values to find the third. Supports g/cmΒ³, kg/mΒ³, lb/ftΒ³ and other common density units.
Power Calculator β P = W/t for Physics & Engineering
Determine the power output or input from work done over time. Convert between watts, horsepower, and other units. Useful for mechanics and electrical analysis.
Work Calculator β W = Fd Online Tool
Calculate mechanical work done when a force acts over a distance. Easily solve for work, force, or displacement with proper unit handling (joules, newtons, meters).
Gravitational Potential Energy Calculator β PE = mgh
Compute the gravitational potential energy stored in an object based on mass, height, and gravity. Ideal for physics students and engineering quick checks.
Minutes to Decimal Hours Converter β Payroll & Timesheet
Convert minutes to decimal hours for easy timesheet and payroll calculations. See a quick reference chart for common conversions like 15 min = 0.25 hours.
Cost of Living Comparison β City vs City in US & Abroad
Compare the cost of living between two cities. See how much you'd need to earn in a new city to maintain your current standard of living, broken down by category.
Rental Property ROI Calculator β Cash Flow & Cap Rate
Analyze the return on investment for a rental property. Input purchase price, rental income, and expenses to calculate cash flow, cap rate, and cash-on-cash return.
Simple Will Preparation Checklist β What You Need Online
Prepare to write your will with this comprehensive checklist. Covers selecting beneficiaries, naming guardians for children, choosing an executor, and listing assets.
Dinner Decision Maker β What Should I Eat Tonight?
End the 'what's for dinner?' debate. Add your family's favorite meals and spin the wheel, or use our curated list of easy dinner ideas to get cooking fast.