// Basic Fitness Calculators

Weight Gain Percentage calculator

See the percentage of body weight you've gained.

Your details

Your result

Weight gained
8.6%
Total gained
6kg

Estimates are for general guidance only and are not medical advice. For a personalised plan, book a free guided tour at RPM Gym.

The Weight Gain Percentage Calculator works out what percentage of your body weight you've gained between two weigh-ins. It's useful during a bulking phase, for tracking muscle gain or for monitoring recovery from a period of unintentional weight loss. Enter your starting weight and your current weight to see the change.

The result is the increase as a percentage of your starting weight, alongside the gain in kilograms. A 5% gain, for example, means you've added 5% of your starting body mass. Use it to check whether your nutrition and training are supporting your weight-gain goal. Steady, controlled gains are often more sustainable and healthier.

Then compare the figure with your goal. If you're gaining too fast or too slowly, adjust your calorie intake or training intensity. Healthy weight gain, especially muscle gain, is a gradual process. For help with your bulking strategy, book a free guided tour of RPM Gym.

Related calculators
View all calculators →
// Frequently Asked

Questions, answered.

How is the Weight Gain Percentage calculated?

((Current Weight - Starting Weight) / Starting Weight) * 100. The result is shown as a percentage.

Why is tracking weight gain percentage important?

It measures your progress relative to your size, so you can see how big the change is compared with where you started. That tells you more than raw kilograms or pounds alone.

What is a healthy rate of weight gain?

For muscle gain, a typical healthy rate is around 0.5% to 1% of body weight per week for beginners, slowing as you get more experienced, which helps limit excess fat gain. Talk to a fitness professional for a target that suits you.

Can this calculator be used for weight loss?

It's designed for gain, but if your current weight is below your starting weight, it shows a negative percentage: the share of weight you've lost. A weight loss percentage calculator gives more context for that goal.

Can RPM Gym help me with my bulk?

Yes. Your gain percentage is a useful check-in for a coaching conversation or a free guided tour, where a coach can adjust your training and nutrition into a realistic plan for the next phase.

Make the numbers count.

Book a free guided tour at RPM Gym Abu Dhabi and turn your targets into a real plan.

Book Free Tour