You'll want to make sure your debts are covered, so you don’t leave major expenses behind for your loved ones to settle. You should consider your income, net worth, other life insurance you may have, monthly expenses and debts.
The cost of life insurance depends on the type of coverage you choose, generally term insurance is cheaper than whole-life insurance. Other determinants are; age, sex, health, gender, tobacco consumption. Compare prices of life insurance companies offering the same product features.