Q: I own several dividend growth stocks. How can I tell whether the dividends will keep growing, or if a dividend cut is possible?

First of all, there is no 100% guaranteed way to determine if your dividends are safe. There's always a risk that any company will need to cut its dividend in the future. Having said that, there are a few things to look at that can help you determine if your stocks have a strong probability of growing their dividends.

The first metric you should know as a dividend investor is known as the payout ratio. This is simply the dividends a stock pays out divided by its earnings. For example, a stock that paid out $1.00 per share last year and earned $2.00 would have a payout ratio of 50%. Lower payout ratios mean that the stock earns a lot more than it pays out, so even if earnings were to drop a little, the dividend should be sustainable.

I generally like to see payout ratios under 50% from dividend stocks (excluding REITS, which are required to pay out 90% of their earnings). It's a big warning sign if any of your stocks have payout ratios close to or greater than 100%.

Next, take a look at your stock's earnings history. You don't necessarily need to see growth every single year, just stability and an upward trend over time. The safest dividends come from businesses that do fine no matter what the market is doing.

Finally, look at the company's dividend record. Past performance doesn't guarantee future results, but stocks that raise their dividends year after year tend to continue to do so.

Let's use Johnson & Johnson as an example. The company pays an annualized dividend of $3.20 and earned $6.73 in 2016, for a payout ratio of 48%. The company has also grown its earnings at a very consistent pace, and has increased its dividend, without fail, for 54 years straight. Therefore, I'd say there's an extremely low chance Johnson & Johnson will have to cut its dividend anytime soon.

Offer from The Motley Fool: The 10 best stocks to buy now
Motley Fool co-founders Tom and David Gardner have spent more than a decade beating the market. In fact, the newsletter they run, Motley Fool Stock Advisor, has tripled the S&P 500!*

Tom and David just revealed their ten top stock picks for investors to buy right now.

Click here to get access to the full list!

*Stock Advisor returns as of 4/3/2017.