Free shipping. Two minutes.

Got an old graphing calculator collecting dust?

Donate it free. We mail you a pre-paid envelope. A student who can't afford one gets a chance at the math classes they need to graduate.

Send my calculator → See how it works

✓ Free poly mailer ✓ Prepaid return label ✓ Takes 2 minutes

> Y1 = give back
> X = old calc
> A student gets a fair shot.
RUN ▶

Mailer shipped to Maya, 14 hrs ago

+1 student helped this week ♥

How it works

Three steps. Zero cost to you.

We do all the work. You just leave the calculator out for your mail carrier.

Tell us where to send the mailer

Fill out a quick form with your name and address. Takes under a minute. No account needed.

Get a free poly mailer in 3–5 days

We ship you a padded mailer with a prepaid USPS return label already attached. Nothing to print, nothing to figure out.

Drop your calculator in. Done.

Slide your calculator inside, peel and seal, and leave it for your mail carrier. We refurbish it and get it into a student's hands.

Why this matters

A $128 calculator is the cost of admission to high school math.

A graphing calculator isn't optional. It's required for Algebra II, Pre-Calc, Calc, AP exams, the SAT, and the ACT. If your family can't afford one, you can't fully participate in the class — and your grade pays for it.

Meanwhile, the calculator you used in 2014 is in a junk drawer right now. We're closing that loop.

$128

Average retail price for a new TI-84 Plus CE — required for most U.S. high school math classes.

9.5 million

U.S. K-12 students living in households below 200% of the poverty line.

10+ years

Working lifespan of a TI-84. The one in your drawer still works perfectly.

Donate now — free

Send your calculator. Help a student.

✓
We ship the mailer to you, free Pre-paid USPS return label included. You pay nothing.
✓
Any working graphing calculator TI-83, TI-84, TI-Nspire, Casio FX-9750 — all welcome. Scientific calculators too.
✓
Cracked screens? Send it anyway Most "broken" calcs just need batteries. We test and refurbish everything.
✓
You'll know where it went We send a one-line email when your calculator reaches a student.

First name

Last name

Street address

City

State / ZIP

What calculator are you donating?

By submitting, you agree we may email you about your donation. We never share your info.

Frequently asked

Questions, answered

What calculators do you accept?

Anything that runs. TI-83, TI-84, TI-89, TI-Nspire, Casio FX series, HP graphing, even basic scientific calculators. If you're not sure, send it anyway — we'll figure it out.

What if my calculator is broken?

Send it. 80% of "broken" calculators just need fresh batteries or a screen wipe. The rest become parts donors — we use them to repair others. Nothing is wasted.

Is Calc 4 Kids a nonprofit?

Calc 4 Kids is a mission-driven LLC. Donations are not currently tax-deductible — but every calculator you send goes directly to a student who needs it, and we keep our overhead low so the math works.

Who actually gets the calculators?

We partner with Title I high schools, after-school tutoring programs, and community math nonprofits to distribute calculators directly to students who can't afford to buy one. No middlemen, no resellers.

How much does the mailer cost me?

Zero. We cover both the outbound poly mailer and the prepaid USPS return label. You don't pay a cent, and you don't need a printer.

I have 20+ calculators from my classroom. Can you help?

Yes — that's a bulk pickup. Email hello@calc4kids.org and we'll arrange free freight pickup for boxes of 10 or more.