Families sacrifice time and money caring for loved ones. A new caregiver calculator reveals the high cost.

Across the U.S., family members caring for loved ones provide an estimated $600 billion in unpaid services each year, sacrificing time, money and often their well-being to care for aging loved ones, according to an AARP survey.

As Congress considers a bill that would provide family caregivers a tax credit, quantifying how much that time is worth is proving to be difficult.

Amy Goyer understands the challenge. Caring for her aging parents meant turning her life upside down. Her mother had a stroke in her late 60s and her father was diagnosed with Alzheimer's disease.