Financial Calculators Navy Mutual offers the following calculators to assist you in estimating your insurance, retirement, and other needs. Although these tools can be extremely helpful, they are not intended to be a replacement for a financial planner or insurance counselor. College Savings How much life insurance do I need? How much will I earn in my lifetime? How long will my current life insurance proceeds last? What are my long-term care insurance needs? How much will I need to save for retirement? What are the tax advantages of an annuity? I'm retired, how long will my savings last? For any questions, or to learn more about Navy Mutual, our products, services, or policies, please call us at 800-628-6011.