Burger King’s Impossible Whopper lists 630 calories, and a no-mayo order lands near 470 calories depending on toppings.
Mayo
Cheese
Full Build
Basic
- No mayo, no cheese
- Keep lettuce, tomato, pickles
- Regular bun
~470 kcal
Better
- No mayo
- Add mustard or extra pickles
- Keep ketchup & onions
~480–500 kcal
Best
- No mayo, add cheese
- Extra tomato for volume
- Hold ketchup if you like
~520–560 kcal
Calories In Burger King’s Plant-Based Whopper: The Numbers
The chain’s plant-based Whopper clocks in at 630 calories on the standard build: sesame bun, plant-based patty, mayo, ketchup, pickles, onions, lettuce, and tomato. That figure comes from Burger King’s own nutrition sheet, which also shows 34 g fat, 58 g carbs, and 25 g protein for the full sandwich. If you ask for no mayo, the calorie line drops sharply to the high-400s, while a slice of cheese pushes it back up. Sauce swaps move the needle less than mayo does.
Why The Default Is Higher Than Many Expect
The patty isn’t the sole driver. A bun, condiments, and creamy sauce stack calories. Mayo alone can add dozens of calories, while ketchup contributes sugar. The patty brings protein and some fat. All told, the full build lands near many beef burgers in energy even though the patty is plant-based.
Broad Nutrition Snapshot (Early Reference)
Here’s a quick table of the most common ways people order it. Values are rounded and based on the brand’s posted figures. Use it to gauge the impact of simple tweaks.
| Order Style | Estimated Calories | What Changes |
|---|---|---|
| Standard Build | ~630 kcal | Mayo + ketchup + veggies on sesame bun |
| No Mayo | ~470–500 kcal | Hold mayo; keep bun and other toppings |
| Add Cheese | ~680–720 kcal | Standard build plus a cheese slice |
| No Mayo + Cheese | ~520–560 kcal | Skip mayo; add cheese |
| Extra Veg, No Mayo | ~480–510 kcal | Double tomato or pickles for volume |
Where The Numbers Come From
The calorie line for the full sandwich is pulled from Burger King’s nutrition document, which lists the plant-based Whopper at 630 calories with the default toppings and bun (official nutrition PDF). The patty’s own nutrition profile sits around 240 calories per 4-ounce serving, with 19 g protein and 0 mg cholesterol according to the maker’s published panel (Impossible Foods nutrition). The rest of the count is bun, sauces, and veggies.
How Mayo, Cheese, And Bun Choices Shift Calories
Mayo is the lever. Pull it out, and you shave a meaningful chunk. Cheese adds back a smaller amount per slice. The bun contributes a steady base, so lettuce-wrap swaps change texture more than energy unless you also pull sauce.
Mayo Math In Real Terms
Skipping mayo while keeping ketchup, pickles, and onions puts the sandwich near the high-400s in calories, based on the chain’s posted total for the full build and typical mayo calories. That swap keeps flavor and moisture by leaning on the other condiments.
Cheese Trade-Off
A single slice of American generally adds about 50–90 calories. If you want creaminess without bumping the number too far, pair cheese with a no-mayo request. That combination still beats the standard build on energy.
Patty Facts At A Glance
The plant-based patty brings 19 g protein per 4-ounce serving, iron added to the mix, and 0 mg cholesterol per the manufacturer’s panel. That’s why the sandwich can feel close to a beef version in texture while differing in cholesterol. If you’re tracking macros, the patty holds steady while sauces swing the dial.
Ordering Moves That Keep Flavor Without The Extra Calories
Small edits keep the craveable bite. Try mustard in place of mayo for tang. Ask for extra tomato or pickles for more volume and crunch. Keep the onions for aroma. These swaps protect satisfaction while trimming energy.
A Simple Three-Step Play
- Say “no mayo.”
- Keep ketchup, onions, pickles, lettuce, and tomato.
- Add mustard or extra pickles if you want more zip.
How This Fits Your Day
Once you set your daily calorie needs, a standard plant-based Whopper can sit in the same range as other full-size fast-food burgers. If you’re allocating room for sides, the no-mayo path leaves more space for a small salad or a few fries.
Macronutrients And Sodium: What To Expect
The full build shows 25 g protein, 34 g fat, and 58 g carbs on the brand sheet. Fiber is modest and comes from the bun and toppings. Sodium is high for a single item, which is typical for fast food. Sauce swaps don’t change sodium much; ketchup and pickles keep salt in the picture, while cheese adds a bit more.
Ingredient Notes
The patty uses soy and potato proteins with plant oils and heme, a yeast-derived ingredient that lends a beef-like taste. This ingredient helps with browning and aroma. If you’re avoiding dairy, ask for no mayo and skip cheese. For strict vegan orders, cooking surfaces and condiment choices matter.
Comparing Builds And Scenarios
Here are common requests and how they likely land. Values are rounded and practical, using the brand’s totals as the baseline for the default build. Your exact number can vary by local prep.
| Scenario | Calories (Approx.) | Notes |
|---|---|---|
| Default Sandwich | 630 kcal | Includes mayo, ketchup, veggies, sesame bun |
| No Mayo | 470–500 kcal | Flavor stays bright with ketchup + onions |
| No Mayo + Cheese | 520–560 kcal | Creamy bite with lower total than default |
| Lettuce Wrap, No Mayo | ~420–450 kcal | Removes bun; texture changes a lot |
| Extra Cheese | ~710–780 kcal | Adds ~100–180 kcal depending on slices |
How To Read BK’s Numbers Smartly
Menu boards and nutrition PDFs list standard builds. Custom orders won’t show exact totals on the fly, so think in parts: bun + patty + sauces + extras. That mental model lets you estimate with confidence. If you want the brand’s official baseline, it’s the nutrition document tied to the U.S. menu, which lists the item at 630 calories and spells out fat, carbs, and protein for a single sandwich.
When You Want Lower Calories Without A Dry Bite
Moisture comes from tomatoes, pickles, onions, and ketchup. Mustard delivers tang without a big calorie tag. That’s why “no mayo” plus “extra pickles” tastes satisfying. Volume from veggies stretches each bite, too.
If You’re Watching Cholesterol
The plant-based patty shows 0 mg cholesterol on the maker’s panel, but the finished sandwich includes mayo and cheese if you keep them. Pulling mayo and skipping cheese aligns the sandwich with that 0 mg patty claim while keeping flavor.
BK Vs. Beef: Calorie Context
Energy sits in the same ballpark as a classic beef Whopper once you include bun and sauces. The edges show up in cholesterol and fiber rather than raw calories. So if your target is fewer calories, your quickest win is still the sauce swap and, if needed, a lettuce-wrap move.
Reliable Sources To Check Before You Order
For the most current calorie line, tap the brand’s nutrition sheet for the sandwich and the patty maker’s nutrition page for the core patty. Those two pages give you the baseline totals and the patty’s macro split, so you can tweak with confidence.
Practical Ordering Templates You Can Copy
“Keep It Light” Template
- Plant-based Whopper, no mayo
- Add mustard (optional)
- Extra tomato or pickles
“Protein And Creaminess” Template
- Plant-based Whopper, no mayo
- One slice of cheese
- Keep ketchup and onions
“Lowest Practical Calories” Template
- Lettuce-wrap build
- No mayo or cheese
- Mustard and pickles for punch
Allergens, Cross-Contact, And Cooking Surfaces
Many locations cook patties on shared equipment. If that matters for your needs, ask for a separate prep. If you avoid eggs or dairy, say “no mayo” and skip cheese. For ingredient and allergen status, the brand’s allergen PDFs and nutrition pages are the best reference points, and they update from time to time.
Bottom Line For Your Order
The posted number for the default sandwich is 630 calories. That’s your anchor. Pull mayo and you shave a big share without losing classic flavor cues. Add cheese only if you want the creaminess and you’ve got the room that day. Those two levers handle most of the swing.
Want a deeper walkthrough on energy budgeting? Try our calorie deficit guide for practical planning.