By goal
The Right Calorie Counter for Your Goal
The way you track should match what you're trying to do. Losing fat, building muscle, cutting for a deadline, or maintaining for life each call for a different calorie and macro strategy.
Pick your goal below for a practical, no-nonsense guide to tracking it — and how WhispCal adapts to each one.
By Thomas MoriceBuilds WhispCal, and writes everything here
Choose your goal
How many calories for your goal?
Every goal is the same arithmetic with a different sign. Find what you burn in a day, then sit under it, on it, or over it. What changes is the size of the gap and how long you hold it.
- Losing fat: 300 to 500 kcal under maintenance, about 0.25 to 0.5 kg a week, and the range most people can actually hold
- Cutting to a date: up to 750 under, faster but harder on energy, training and muscle
- Building muscle: 200 to 300 kcal over maintenance, because a bigger surplus adds fat and not much else
- Maintaining: at maintenance, with the number expected to drift as your weight and training change
What changes between goals, apart from calories
Two things move with the goal and most people only adjust one of them.
Protein goes up as calories come down. In a deficit, 1.8 to 2.4 g per kg of bodyweight is what protects muscle while you lose fat; at maintenance 1.4 to 2.0 is comfortable and plenty. Fat has a floor of roughly a quarter of your calories, for hormones and for satiety, and carbohydrate takes whatever is left.
The other is how long you stay there. A deficit is a phase, not a setting. Held too long it stops working, which is the single most common reason a plan that was fine in month one is stuck in month four.
Why a fixed calorie number stops working
When you diet, your body defends its weight. Some of that is simple arithmetic, since a lighter body costs less to run. The rest is metabolic adaptation: you fidget less, you move less, and the same food goes further than it used to.
The practical effect is that the deficit you calculated in week one has quietly shrunk by week six, without you eating a single thing differently. The scale stalls, the app still shows the same target, and nothing in the app knows anything has changed.
This is what WhispCal is built around. It compares what you log with your weight trend, works out the burn your body is actually running at, and moves the target when it drops. Each goal gets a phase with its own rule for how the number should move.
Start with the goal you are on now
Pick the guide for what you are doing this month, not for where you want to be next year. A phase you can finish beats a plan you abandon.
- Calorie counting for weight loss and for cutting
- For muscle gain and for bulking
- For maintenance, the phase everything else returns to
- For beginners and for athletes
Frequently asked questions
How many calories should I eat to lose weight?
Start 300 to 500 kcal below your maintenance, which works out at roughly 0.25 to 0.5 kg a week for most people. Below about 1,500 kcal for men or 1,200 for women you are trading muscle and energy for speed, and the last few kilos get harder rather than easier.
Should my calorie target change as I lose weight?
Yes, and twice over. A lighter body burns less, and prolonged dieting lowers your burn further than size alone explains. A target set in January and never revisited is the usual reason a plan stops working in spring.
Can I lose fat and build muscle at the same time?
Beginners, people returning after a break, and people with a lot of fat to lose can do both for a while. Everyone else has to pick one and switch, which is why phases exist rather than a single permanent setting.
Do I need to track macros or just calories?
Calories decide whether your weight moves. Macros decide whether the change is muscle or fat and how you feel getting there. If you only track one thing beyond calories, track protein.
Let WhispCal do the math automatically
These numbers are a starting point. WhispCal measures how your body actually responds — logging food in 3 seconds by voice, photo, or barcode — and auto-adjusts your targets as your metabolism changes. Free on iOS and Android.
Free on iOS & Android