Plants vs Brainrots Calculator — Income, DPS & Mutation Tools

How Plants vs Brainrots Actually Works

Plants vs Brainrots is a tower defense game on Roblox where you grow plants to fight waves of enemies called Brainrots. When your plants defeat a Brainrot, it joins your collection and generates passive cash every second — even when you're offline, though at 10x the reduced rate.

Two separate systems power the game:

• Plants are your defense. They deal damage (DPS) to incoming Brainrots. Better plants hit harder and faster. Mutations boost their DPS. The right plant in the right position can carry an entire defense.
• Brainrots are your income. Once defeated, they sit in your base generating cash continuously. Better Brainrots, heavier Brainrots, and mutated Brainrots all earn more per second. This income funds your next plant upgrades.

The relationship between the two is what makes the game strategic. You need enough plant DPS to defeat high-value Brainrots efficiently. And you need enough Brainrot income to afford the plants that let you do that.

Brainrot Income Formula — The Math Explained

This is the formula the game uses. Once you understand it, every decision gets cleaner.

Weight Multiplier

All base income values in this guide use 10kg as standard. A 10kg Brainrot has a weight multiplier of 1.0 (no change). A 20kg Brainrot has a multiplier of 2.0 — double the income. A 5kg Brainrot earns half the base income.

This is why you hold onto heavier Brainrots and sell lighter duplicates. Weight compounds with mutations. A 20kg Galactic Brainrot earns 2.0 × 8 = 16x the base income of a 10kg Normal one.

Mutation Multiplier

Rebirth Multiplier

Each time you Rebirth, your income multiplier increases permanently. Rebirth also expands your island for more Brainrot slots and unlocks the Fuse Machine on the first Rebirth.

The calculator uses a Rebirth multiplier input so you can see exact income at your current progression level.

Offline Income

When you close the game, income continues at 1/10th the normal rate. Meaning if your online income is $10,000/sec, offline you earn $1,000/sec.

Plan your offline sessions around your highest-earning Brainrots. Log back in after a long session, collect offline earnings, and upgrade before going offline again.

All Brainrot Income Values (Sorted by Rarity)

All values shown at 10kg, Normal mutation, no Rebirth bonus. Use the calculator above to adjust for your actual weight and mutation.

Secret Tier (Fusion Required)

Los Mr. Carrotitos is the endgame target. The fusion requires obtaining both the Mr. Carrot plant and Los Tralaleritos Brainrot first — neither is easy to get. If you're working toward it, prioritize those two pieces before anything else.

Godly Tier

Legendary & Below (Quick Reference)

Pity system: Every 100 spawns guarantees at least one Legendary. Every 500 spawns guarantees a Mythic. Keep grinding — the pity counter doesn't reset unless you leave.

Top Income Rare Brainrots (Starting Targets)

• Fluri Flura$6/s
• Boneca Ambalabu$5/s
• Lirili Larila$4/s
• Pipi Kiwi$3/s
• Orangutini Ananassini$3/s
• Tung Tung Sahur$2/s
• Noobini Bananini$2/s

These numbers look small but they add up with weight and mutations. A 30kg Neon Fluri Flura earns $6 × 3.0 (weight) × 5 (Neon) = $90/sec from a single Rare Brainrot.

Plant DPS Formula

Max Damage calculations:

• Max Damage (20 sec) = DPS × 20
• Max Damage (66 sec) = DPS × 66
• Max Damage (88 sec) = DPS × 88

Use these to check whether your plants can kill a specific Brainrot before it escapes. If Max Damage (20s) is lower than the target Brainrot's HP, you need more DPS or a longer engagement window.

Plant Attack Types

• Melee Plants — Must be placed near the treadmill where Brainrots spawn. High damage, close range. Place these in your front rows.
• Ranged Plants — Can attack from back rows. Safer positioning. Lower damage per hit than melee but continuous coverage.

Mix both for full coverage. Melee up front to slow and damage, ranged in the back to clean up.

Plant Mutations (DPS Multipliers)

Why Frozen is special: The 0.3 second stun per hit stacks across multiple attacking plants. If three Frozen plants all hit the same Brainrot, it stays stunned continuously, letting your other plants deal damage without the target moving. This is better in practice than raw Neon DPS for defense.

Top Plants by DPS (Current Tier List)

Mutation Guide — Weather Events Explained

Mutations in Plants vs Brainrots are mostly weather-dependent. Knowing which event is active changes what you should be doing in-game.

What to Do During Each Weather Event

• Icy Blizzard: Plant as many seeds as you can. 15% Frozen mutation rate means you'll get Frozen plants regularly. These are your best defenders due to the stun effect.
• Server Luck: Both plant and Brainrot mutation rates increase. Keep defeating Brainrots on the treadmill and sowing seeds simultaneously. Maximum output window.
• Galactic: Rare event. When it's active, do nothing but defeat Brainrots. 0.05% Galactic rate means you might get one per event if you're grinding. A single Galactic Brainrot at good weight justifies the whole session.
• Admin Abuse (Underworld Rift, Reality Flip): These only happen when the game admins manually trigger them. No way to predict. Watch the official Discord for announcements. When they happen, log in immediately.

The Fusion System — High-Value Combinations

The Fuse Machine unlocks after your first Rebirth. It lets you combine a specific plant + a specific Brainrot to create a new, more powerful Brainrot.

Known Fusion Combinations

The fusion system is the endgame loop. Once you have the Fuse Machine, start collecting fusion components alongside your regular grinding. Los Mr. Carrotitos requires both materials — getting one without the other is wasted progress.

Rebirth Guide — When and Why

Rebirth resets your plants and Brainrots but gives you permanent multipliers that make everything better. The question most players get wrong is timing.

Don't Rebirth too early. You lose your collection. If you Rebirth when your total income is $500/sec, you'll take a long time to rebuild. The right time is when progress noticeably slows — when your income gains per session are shrinking because you can't defeat higher-value Brainrots fast enough.

What resets: All plants, all collected Brainrots, and cash balance.

The permanent multiplier compounds. Each Rebirth makes the next rebuild significantly faster. Players who Rebirth frequently outpace those who hold their collection long-term.

Strategy Guide — Building Your Defense

Early Game (Before First Rebirth)

Plant cheap seeds first — Cactus, Strawberry — to generate basic defense. Defeat Rare Brainrots as fast as possible. Focus on Fluri Flura and Boneca Ambalabu for income. Don't upgrade plants beyond what you need to defeat current waves.

Your goal is to reach first Rebirth as quickly as possible. Everything before it is setup.

Mid Game (After First Rebirth)

You now have the Fuse Machine and a permanent multiplier. Start identifying what you need for Los Mr. Carrotitos. Farm Mr. Carrot plant intentionally. Keep defeating higher-tier Brainrots for Los Tralaleritos.

Invest in Brussel Sprouts or Starfruit for DPS. These carry you through Legendary Brainrot waves.

Build a mix: 2-3 Frozen plants for stun coverage, 2-3 high-DPS plants for damage. Don't go all one type.

Late Game (Multiple Rebirths)

At this stage, your rebirth multiplier makes early grinding fast. Focus sessions around weather events:

• Galactic weather → stop everything, grind Brainrots only
• Icy Blizzard → plant everything, get Frozen plants stocked
• Server Luck → dual focus, plant seeds + defeat Brainrots simultaneously

Target Galactic mutations on your highest income Brainrots. A 30kg Galactic Los Mr. Carrotitos earns $31,000 × 3.0 × 8 = $744,000/sec.

Common Questions

How This Calculator Is Different

Most Plants vs Brainrots calculators show basic income numbers. This one accounts for:

• Weight at any value (not just 10kg standard)
• Full mutation stack calculation
• Rebirth multiplier input
• Offline income estimate
• Plant DPS with fire rate, weight, and mutation combined
• Max damage over 20s, 66s, and 88s timeframes
• Fusion result income output

If the number in your head doesn't match what you're actually earning, use the calculator to find where the gap is. Usually it's weight — players underestimate how much weight affects the final number.