Free Planning Tools & Calculators
BennyList's free planning tools help expecting parents and engaged couples make confident decisions — from calculating a due date to budgeting a wedding or estimating the full cost of a baby registry. No account required, no cost, no guesswork.
Planning tools built for weddings and new babies
Whether you're newly engaged, expecting your first child, planning for the holidays, or helping organize a baby shower for someone you love, having the right planning tools makes every decision easier. BennyList offers eight free interactive tools covering the most common planning questions people face during life's biggest milestones.
The baby name generator helps expecting parents discover and shortlist names filtered by gender, style, and meaning. The pregnancy week-by-week tracker shows baby's size and development milestones for every week from 4 to 40. Our Christmas budget calculator lets you plan gift spending by recipient with a live total vs. your budget. The due date calculator gives expecting parents an estimated delivery date and trimester breakdown in seconds. For couples, the wedding budget calculator breaks a total budget into category-by-category allocations, and the wedding gift amount calculator removes the guesswork around how much to spend on a wedding gift.
Every tool pairs with a dedicated guide so you can go deeper on any topic. After planning, you can create a free baby registry or wedding registry on BennyList and add items from any store — Amazon, Target, Buy Buy Baby, Crate & Barrel, or anywhere else — on one shareable list.
All Tools
Pick a tool and get started
Every tool is free, interactive, and takes less than a minute to use. Each one also links to a full guide if you want more detail.
Baby Name Generator
Filter by gender and style — classic, modern, nature-inspired, or unique — to discover baby names with meanings, origins, and popularity rankings. Heart your favorites to build a shortlist.
Pregnancy Week-by-Week Tracker
Select your pregnancy week to see your baby's size compared to a fruit, key development milestones, and what you may be experiencing — from week 4 through week 40.
Christmas Budget Calculator
Plan your holiday gift spending by recipient — add names and amounts, include extras like food and decorations, and track your running total against your budget in real time.
Thank You Note Generator
Writing 60 thank you notes after your wedding or baby shower shouldn't take all weekend. Choose your occasion, pick a tone, fill in the details, and copy a heartfelt note in seconds.
Engagement Ring Calculator
How much should you spend on an engagement ring? Enter your budget, compare natural diamonds vs. lab-grown, pick your metal and shape, and see exactly what carat size you can afford.
Baby Shower Game Generator
Browse 10 popular baby shower games — Don't Say Baby, Bingo, Baby Price Is Right, Diaper Raffle, Emoji Quiz, and more — with full host instructions and supplies lists. Build and print your party plan.
Ovulation Calculator
Enter your last period date and average cycle length to calculate your fertile window, peak ovulation day, and a 3-cycle fertility forecast with a color-coded calendar view.
Pregnancy Weight Gain Calculator
Get personalized weight gain guidelines based on your pre-pregnancy BMI using IOM 2009 recommendations. Track your progress by week against trimester targets.
Baby Shower Invitation Wording Generator
Choose your occasion (classic shower, gender reveal, or sprinkle), pick a tone, fill in your details, and instantly copy beautiful invitation wording — no design skills needed.
Birthday Party Budget Calculator
Plan your birthday party spending with preset templates for kids parties, adult dinners, and milestone celebrations. Add categories, track per-guest cost, and see your total in real time.
Age Calculator
Find your exact age in years, months, and days. See your total days and weeks lived, countdown to your next birthday, discover your western and Chinese zodiac signs, and upcoming life milestones.
Due Date Calculator
Enter your last menstrual period or conception date and instantly calculate your estimated due date, trimester milestones, and key prenatal checkpoints.
Baby Registry Cost Estimator
Get a realistic estimate of what a complete baby registry costs — broken down by category including sleep, feeding, diapering, travel, and nursery gear.
Baby Shower Planning Checklist
An interactive checklist covering every baby shower detail — venue, guest list, invitations, food, decorations, games, and gift opening logistics. Progress saves automatically.
Wedding Budget Calculator
Break your total wedding budget into realistic category allocations — venue, catering, florals, photography, attire, music, and more — so every dollar is planned.
Wedding Gift Amount Calculator
Not sure how much to spend on a wedding gift? This calculator factors in your relationship to the couple, whether you're attending, and your personal budget to give you a clear recommendation.
Secret Santa Generator
Add participants, set a gift budget, exclude couples or family pairs who shouldn't be matched, and draw randomized Secret Santa assignments instantly — with a private reveal for each person.
Anniversary Gift Calculator
Enter your anniversary year to get the traditional gift theme, modern alternative, gemstone, and flower — with curated gift ideas from thoughtful keepsakes to milestone splurges.
Housewarming Gift Calculator
Not sure how much to bring or what to give? Select your relationship and their home situation — first home, renting, or upgrading — for a recommended budget and curated gift ideas.
Graduation Gift Calculator
Find the right gift amount based on degree level (high school, college, graduate) and your relationship to the grad — with ideas at every budget from cash to experience gifts.
Push Present Calculator
A push present celebrates what the birthing parent went through. Select your budget for curated gift ideas across jewelry, postpartum recovery, keepsakes, experiences, and self-care.
Baby Shower Guest List Manager
Add guests, track RSVPs, log gifts as they're opened, and mark thank-you notes as sent — all in one place. Running totals update as you go, and everything saves automatically.
Diaper Calculator
Find out exactly how many diapers you'll need from newborn through potty training — broken down by size with quantity estimates and total cost so you can stock your registry strategically.
Hospital Bag Checklist
A complete interactive packing checklist for labor and delivery — covering the birthing parent, baby, support partner, and essential documents. Your progress saves automatically.
Wedding Countdown & Planning Timeline
Enter your wedding date for a live countdown and a month-by-month planning checklist — from booking the venue 12 months out to the day-of emergency kit, with overdue task alerts.
Wedding Party Proposal Box Calculator
Plan your bridesmaid and groomsman proposal boxes before you buy. Select items from curated lists, enter your party size, and see your total cost — with an over/under budget indicator.
Registry Completion Tracker
Add your wedding or baby registry items, mark what's been purchased, and see your completion percentage, total registry value, and what's still needed — all saving automatically.
Baby Sleep Schedule Calculator
Get age-appropriate wake windows, total sleep needs, nap count, and a sample daily schedule for your baby — plus sleep regression alerts and AAP safe sleep guidelines.
Wedding Hashtag Generator
Generate 12 custom wedding hashtag ideas from your names instantly — with tips on choosing the best format, making it unique, and getting guests to actually use it.
Baby Shower Gift Calculator
Find out how much to spend on a baby shower gift based on your relationship and whether it's a first, second, or third baby — with curated gift ideas and etiquette guide.
Childcare Cost Calculator
Compare full-time daycare vs nanny costs by region and child age — with monthly and annual estimates, nanny tax breakdown, a daycare vs nanny comparison guide, and 6 cost-saving tips.
Nursery Budget Calculator
Select budget, mid-range, or luxury tier — then check off each nursery item to get a running total with must-have vs nice-to-have guidance and item-by-item tips.
Honeymoon Budget Calculator
Choose your destination, travel style, and trip length to get an itemized honeymoon cost estimate — flights, hotel, food, and activities — with a destination comparison guide and planning tips.
Baby Formula Calculator
Enter your baby's age to find out how many ounces of formula per day, how many cans per month, and what you'll spend — with a formula type comparison and safe preparation guide.
Why BennyList
Tools that go beyond a generic calculator
Most planning calculators give you a number and stop there. BennyList's tools are built around the real decisions people face — and they connect directly to the guides, registries, and wishlists that help you act on what you learn.
Completely free
Every tool on BennyList is free to use with no account required. Open it and start planning immediately.
Built for real decisions
These aren't generic calculators. Each one is built around the specific decisions couples and parents actually face.
Backed by expert guides
Every tool links to a detailed guide so you can go deeper on any topic — from registry checklists to etiquette advice.
No store restrictions
After planning with a tool, you can build a BennyList registry or wishlist with items from any store — not just one retailer.
Go Deeper
Related guides for every tool
Each tool pairs with detailed guides that cover the full topic — from registry checklists to gift etiquette and budget breakdowns.
Baby Registry Checklist
A complete list of what to add to your baby registry, organized by category.
Baby Registry Essentials
The must-have items that new parents actually use in the first year.
Baby Shower Gift Ideas
Thoughtful and practical gift ideas for baby showers at every budget.
Wedding Registry Checklist
Everything a couple needs to register for, room by room.
Wedding Gift Ideas
Unique and classic wedding gift ideas for every budget and couple.
How Much to Spend on a Wedding Gift
Practical guidance on what's appropriate to spend based on your situation.
FAQ
Frequently asked questions
Common questions about BennyList's planning tools, calculators, registries, and wishlists.
Are BennyList's planning tools free to use?
Yes. All planning tools and calculators on BennyList are completely free with no account required. You can use the due date calculator, wedding budget calculator, baby registry cost estimator, and all other tools without signing up.
How accurate is the due date calculator?
BennyList's due date calculator uses the standard Naegele's Rule method, which is the same formula used by most OB-GYNs. It calculates your estimated due date based on the first day of your last menstrual period (LMP) and provides key milestone dates. Always confirm your due date with your healthcare provider.
How does the baby registry cost estimator work?
The baby registry cost estimator lets you select which item categories you need — sleep, feeding, diapering, travel, nursery, and safety — and generates a realistic cost range based on average prices for each category. It's designed to help first-time parents understand the full scope of a baby registry before they start adding items.
How much should I spend on a wedding gift?
The standard guidance is $75–$150 per guest depending on your relationship to the couple, whether you're attending the ceremony, reception, or both, and your personal budget. BennyList's wedding gift amount calculator factors all of these in and gives you a specific recommendation based on your situation.
How should I split a wedding budget by category?
A typical wedding budget allocates roughly 35–50% to venue and catering, 10–12% to photography and video, 8–10% to florals and decor, 8–10% to music and entertainment, and the remainder to attire, invitations, favors, and transportation. BennyList's wedding budget calculator breaks this down based on your total budget so you can see exactly what each category can afford.
What should a baby shower planning checklist include?
A complete baby shower planning checklist covers: choosing a date (typically 4–6 weeks before the due date), selecting a venue, building a guest list, sending invitations 4–6 weeks in advance, planning the menu, organizing games, coordinating decorations, and arranging gift opening and thank-you notes. BennyList's interactive baby shower planning checklist walks through every step.
Can I create a baby registry or wedding registry on BennyList?
Yes. After using the planning tools, you can create a free baby registry or wedding registry on BennyList and add items from any store. BennyList isn't tied to one retailer, so you can mix items from Amazon, Target, Buy Buy Baby, Crate & Barrel, or anywhere else on a single shareable list.
Ready to build your registry or wishlist?
After planning with these tools, create a free baby registry or wedding registry on BennyList. Add items from any store and share a single link with everyone on your list.