Why EP savings are the maximum case
If baby takes ~25 to 30 oz/day and all of it is breast milk from your pump, you avoid nearly all formula spend for that period.
Combo feeders and part-time pumpers save less because formula still fills part of daily intake. EP is the ceiling for replacement math.
Start with the formula savings hub for baseline costs and the ounces-replaced formula.
Monthly and annual savings at full replacement
At ~$180/month formula cost and full replacement:
- 1 month EP: ~$180 avoided
- 6 months EP: ~$1,080 avoided
- 12 months EP: ~$2,160 avoided
Ready to simplify your pumping schedule?
Track sessions and your freezer stash with Stash on iOS.
Subtracting EP-specific costs (bags, parts, electricity)
EP uses more bags and bottles than occasional pumping. Budget $40 to $60/month for storage bags, extra bottles, and flange replacements during heavy use.
Double electric pumps run $150 to $400 one-time (often insurance-covered). Spread over 6 months that is $25 to $65/month.
Rough net after supplies during active EP: $100 to $140/month for many families on standard formula.
Electricity and cleaning supplies are minor but real. Do not ignore them if you want penny-accurate math.
When EP savings do not offset the time cost
Six to eight daily sessions at 20 to 30 minutes each is 2 to 4 hours per day. If your household values that time highly, or you could earn more working those hours, formula may win on total cost of living even when powder is expensive.
That is a valid family decision, not a failure. See what to do when you want to stop pumping if the tradeoff no longer works.
Partial wean to combo feeding preserves some savings with less time. Combo feeding formula savings shows the middle path.
Tracking cumulative savings in Stash
A running total beats mental math after month three. Stash on iOS charts money saved vs formula alongside output and stash trends.
Pair tracking with freezer stash calculator freedom-date math from how much breast milk to stop pumping.
Motivation when EP feels endless: exclusive pumping motivation plus dollar milestones from this guide.
Try for free if logging sessions and seeing savings helps more than willpower.

