How to use the calculator
- Add up the haul. Total the cash and each gift card’s balance, then slide the haul to that number, rounded to the nearest $5.
- Set Save and Spend. Give takes what is left, so the three piles always add up to the whole haul.
- Tap a goal. Pick one, from a $25 treat to a $250 bike or console, and the bar shows how much of it the Save pile covers.
- Try a second split. Move a slider 10 points and watch the bar: the gap between the two splits is the trade your kid is choosing.
A worked example: a $100 haul at 50 / 30 / 20
Say the cash and cards add up to $100 and you start at 50 / 30 / 20. Save gets $50, Spend $30 and Give $20. Aimed at a $60 video game, the $50 Save pile covers 83% of it in one afternoon. Tilt the split to 60 / 20 / 20 and Save is $60: the whole game. Aimed at $120 headphones instead, the same $50 is not quite halfway, and the rest becomes the next few months of saving.
Compare the weekly allowance: at $10 a week, $100 takes ten weeks. A holiday haul can get there in a day, which is why the split matters so much at Christmas.
Gift cards and the split by age
Count each gift card’s balance in the haul; the guide to Christmas money covers what to do with the cards and how the split changes with age.
Whatever the split, a Save share of 10% or more clears the floor the Consumer Financial Protection Bureau suggests for school-age kids:
10%
The CFPB’s Money as You Grow guide calls saving at least a dime of every dollar a good habit, and suggests a school-age child save 10 percent of the money they get.
Source: CFPB, December 12, 2024
Let your kid run the numbers
- Hand over the sliders. Ask your kid to find the split where the Save pile covers the goal they named, then read out what that leaves to spend.
- Say both amounts. “$30 to spend today and $50 toward the game” is a plan a kid can hold on to; “save half” is only a rule.
Common questions
What can my kid buy with their Christmas money?
Split it first, and the answer comes in dollars: the Spend pile is what can be bought now, and the Save pile is what can be bought soon. On a $100 haul at 50 / 30 / 20, that is $30 to spend today and $50 toward a goal, enough for a $25 treat outright or 83% of a $60 video game.
What can a kid do with $100?
Make three piles: at 50 / 30 / 20, $50 to save, $30 to spend and $20 to give. Aimed at $120 headphones, the $50 leaves $70 to go, which is 14 more weeks if half of a $10 weekly allowance goes to Save.
What can a kid buy with $20?
$20 is where the calculator starts. At 50 / 30 / 20 it makes $10 to save, $6 to spend and $4 to give, and the $10 covers 40% of a $25 treat. A small haul is worth splitting too: the habit is the same at any size.
What can a kid do with $200?
At 50 / 30 / 20, $200 makes $100 to save, $60 to spend and $40 to give. The $100 covers a $60 video game with $40 left over, or 83% of $120 headphones.
What about $300 or $500?
$300 is the calculator’s top: at 50 / 30 / 20 it makes $150 to save, $90 to spend and $60 to give, and the $150 covers 60% of a $250 bike or console. For $500, set the haul to $250 and double each pile: $250 to save covers the bike or console outright.
Lessons your kid can play
Inside Sprout Saver, one short lesson for each age band practices what the calculator shows: waiting for the bigger goal, holding out against a sale, and planning for bonus money.
More free tools
- Allowance calculatorA weekly allowance by age, household budget and pay system, with a save, spend and give split.
- Save, spend, give calculatorSplit any weekly allowance into three jars and see what each jar holds after a year.
- Robux calculatorHow many Robux a dollar amount buys at Roblox’s prices, what else it could buy, and a monthly Robux budget.
- Fortnite Battle Pass calculatorIs the Battle Pass worth it at your kid’s play rate? What it really costs, in V-Bucks and dollars.
- Teen paycheck calculatorGross pay to take-home pay for a first job: Social Security, Medicare and estimated withholding.
Related guides
- What to do with Christmas money (by age)The parent’s guide: the split by age, gift cards, day-one spenders and generous relatives.
- Save, Spend, Give: the simple money system for kidsThe same three jars for allowance, all year.
- Parent tips for teaching kids about moneyPractical tips on allowances, saving and money conversations.