An age calculator determines your exact age in years, months, and days from your birth date to today or any target date. Many important Canadian life decisions, government program eligibilities, and financial planning milestones depend on knowing your precise age, making this a genuinely practical tool for Canadians across every life stage. CPP and Retirement Age Planning in Canada: CPP retirement benefits can begin as early as age 60 with a permanent reduction of 0.6% per month before age 65, meaning starting at 60 produces a 36% reduction from the standard benefit. Deferring to age 70 increases the benefit by 0.7% per month, delivering 42% above the standard amount. For someone entitled to $1,000 per month at 65, starting at 60 yields only $640 while waiting until 70 yields $1,420. OAS begins at 65 but can be deferred to 70 for a 36% increase. The financial impact of these age-based decisions can reach hundreds of thousands of dollars over a retirement. Financial Account Age Rules Every Canadian Should Know: TFSA contribution room begins accumulating at age 18. RRSP contributions must cease and the account must be converted to a RRIF by December 31 of the year you turn 71, with serious tax consequences for missing this deadline. The First Home Savings Account requires applicants to be at least 18 years old and under 71. Knowing exactly how many months you have until key age milestones helps optimize the timing of major financial decisions. Age and Canadian Health Screening Recommendations: Colorectal cancer screening through the Ontario Colon Cancer Check begins at age 50. Mammography screening is recommended every two years starting at age 50. Blood pressure monitoring becomes more critical after age 40. Bone density testing is recommended at age 65 for women and earlier for those with risk factors. Ontario Legal and Administrative Age Thresholds: The age of majority in Ontario is 18. Senior discounts at transit systems, retailers, and entertainment venues typically begin at age 65. Many federal and Ontario seniors benefit programs begin at 65 while others begin at 55. Calculating Age for Canadian Families: Parents frequently need a child exact age in months for school enrollment eligibility and benefit program applications. This free calculator serves Canadians at every life stage, from tracking a newborn developmental milestones to planning optimal CPP and OAS start dates for a comfortable retirement. This calculator is useful for financial planning appointments when you need to quickly calculate exactly how many months remain until you reach 65 for OAS eligibility, 71 for RRSP conversion deadline, or any other age-based financial milestone. Save the results to track progress toward important age thresholds that will trigger significant changes to your government benefit eligibility and registered account rules across Canada.