Motherhood Penalty Calculator: What Having Kids Actually Costs
Built on Budig & England's per-child wage penalty research (~5–7% per child), Correll et al. hiring-rate effects, and BLS parental leave data.
The motherhood penalty is one of the most-replicated findings in labor economics — women with children earn measurably less than equivalent childless women, even after controlling for experience, education, and hours. This calculator estimates the lifetime dollar cost for your situation: immediate leave foregone earnings, per-child wage reduction over your remaining career, and the compounded lifetime total.
Methodology & limitations
Per-child wage penalty: Budig & England 2001 American Sociological Review found roughly 7% lower wages per child in their 1982-1998 NLSY cohort, with the effect partially (but not fully) explained by job interruption, reduced effort, and employer discrimination. Replications since put the figure at 5–7%, with narrowing over time but persistent. Leave: BLS National Compensation Survey reports average female parental leave at 9.6 weeks, of which roughly 6.4 are paid in some form. State-level adjustment uses the pay-ratio scaling from the Pay Gap Lookup tool. Lifetime calculation: immediate foregone earnings (leave weeks × weekly pay) + per-year wage penalty compounded at 2% real growth over remaining career years. Figures are estimates; actual penalties vary by employer, field, and individual circumstance.
Sources
- Budig & England, 'The Wage Penalty for Motherhood,' American Sociological Review (2001)
- Correll, Benard & Paik, 'Getting a Job: Is There a Motherhood Penalty?' American Journal of Sociology (2007)
- Budig & Hodges, 'Differences in Disadvantage: Variation in the Motherhood Penalty across White Women's Earnings Distribution,' American Sociological Review (2010)
- Goldin, 'A Grand Gender Convergence: Its Last Chapter,' American Economic Review (2014)
- BLS National Compensation Survey — Leave benefits
If you share this with a partner
- The number this calculator produces is an average; many employers produce no penalty and some produce a much larger one. Use it to frame the conversation about what your specific employer does, not as a prediction of your life.
- The penalty is measurable; that doesn't mean it's deserved or fair. The research documents it so we can name it — and so workplaces can address it.
- If you're considering a career break, do a back-of-envelope with and without an employer that offers paid leave + return-to-work support. Structural policy matters more than individual negotiation for this number.
- Fathers experience a fatherhood bonus, not a penalty, of ~6% higher earnings. Calculate your household penalty by subtracting his bonus from your deficit.
- Countries with universal paid leave + subsidized childcare show much smaller motherhood penalties. The numbers here reflect the US in 2024.