Best French Toilets (2026)
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Refined, softly curved one-piece and skirted silhouettes with a polished, Parisian-elegant profile, paired with verified MaP flush scores rather than a stylist's…
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What Is a Good MaP Score for a Toilet
MaP (Maximum Performance) scores are the industry standard for measuring a toilet's flushing power. This guide explains what the numbers mean, why they matter, and how to choose a toilet with a score that ensures reliable, clog-free performance.
Why Trust Best Flushing Toilets
- Flushing power and MaP flush-test scores
- Water efficiency (GPF and EPA WaterSense)
- Aggregated owner reviews
- Clog resistance and trapway design
- Brand reliability and warranty
Research updated June 2026.
Quick Answer
A good MaP score for a toilet is 1000 grams or higher, which indicates the toilet can clear a full load of waste (including toilet paper) in a single flush. Scores above 800 grams are acceptable for light use, but 1000 grams is the recommended minimum for reliable, clog-free performance in a home bathroom.
What Does a MaP Score Measure?
MaP (Maximum Performance) scores measure the mass of waste (in grams) a toilet can flush completely in one flush. The test uses a simulated waste mixture that mimics real human waste, and the score is the highest mass that clears the bowl and trapway in at least three out of five flushes.
MaP testing was developed by the Canadian government and is now managed by the independent organization map-testing.com. It is the most widely accepted standard for comparing toilet flush performance. The test is conducted in a controlled lab using a consistent mixture of soybean paste and toilet paper. A score of 1000 grams means the toilet can flush 1000 grams of that mixture in a single flush.
For context, a typical human bowel movement weighs between 100 and 400 grams. A MaP score of 1000 grams provides a significant safety margin for toilet paper and multiple uses. The test is repeated five times at each mass level, and the score is the highest mass that passes at least three of five attempts. This makes MaP scores a reliable indicator of real-world performance.
Expert Take
MaP scores are the most objective way to compare toilet flush power. They eliminate marketing hype and give you a direct number to evaluate. Always look for the MaP score in the toilet's specifications or check the MaP testing database for independent results.
What Is a Good MaP Score for a Toilet in 2026?
A good MaP score for a toilet in 2026 is 1000 grams or higher, with many top-performing models achieving 1000 grams or more. Scores of 800 to 999 grams are acceptable for light-use bathrooms, but 1000 grams is the recommended minimum for a primary bathroom to ensure reliable clog resistance.
The table below shows how MaP scores translate to real-world performance levels:
| MaP Score Range | Performance Level | Recommended Use |
|---|---|---|
| 1000+ grams | Excellent | Primary bathrooms, heavy use, families |
| 800–999 grams | Good | Guest bathrooms, light to moderate use |
| 600–799 grams | Acceptable | Low-use bathrooms, commercial light duty |
| Below 600 grams | Poor | Avoid for residential use; high clog risk |
Most modern toilets with best flushing toilets technology achieve scores of 800 grams or higher. However, many popular models like the TOTO Drake II and American Standard Champion 4 score 1000 grams or more. The key is to match the score to your household's needs. A family of four will benefit from a 1000-gram toilet, while a single person in a small apartment may be fine with 800 grams.
Expert Take
Don't settle for a toilet with a MaP score below 800 grams for any bathroom you use regularly. The extra cost for a 1000-gram model is usually small, and the peace of mind from fewer clogs is worth it. Check the MaP database for the exact score of any model you are considering.
How Does MaP Score Relate to Water Efficiency (GPF)?
MaP score and GPF (gallons per flush) are not directly linked. A toilet with 1.28 GPF can achieve a MaP score of 1000 grams, while a 1.6 GPF toilet might only score 600 grams. The design of the bowl, trapway, and flush valve determines efficiency, not just water volume.
Many consumers assume that a higher GPF means better flushing power, but that is not true. Modern engineering allows low-flow toilets (1.28 GPF or less) to outperform older 1.6 GPF models. The TOTO Drake II, for example, uses 1.28 GPF and achieves a MaP score of 1000 grams. The key is the flush system design, such as TOTO's Tornado Flush or American Standard's VorMax technology.
EPA WaterSense certification requires toilets to use no more than 1.28 GPF and pass a MaP test of at least 350 grams. However, many WaterSense models far exceed this minimum. For the best combination of water savings and flushing power, look for a WaterSense-certified toilet with a MaP score of 1000 grams. This gives you efficiency without sacrificing performance.
Expert Take
Do not use GPF as a proxy for flush power. A 1.28 GPF toilet with a MaP score of 1000 grams will flush better than a 1.6 GPF toilet with a MaP score of 600 grams. Always prioritize MaP score over GPF when evaluating flush performance.
Which Toilets Have the Best MaP Scores?
The toilets with the best MaP scores include the TOTO Drake II (1000 grams), American Standard Champion 4 (1000 grams), and Kohler Highline (1000 grams). These models consistently achieve top scores in independent testing and are widely recommended by plumbers and homeowners.
Here is a comparison of top-performing toilets based on MaP scores and other key specifications:
| Model | MaP Score | GPF | Flush Type | Trapway | Height | Best For | Check Price |
|---|---|---|---|---|---|---|---|
| TOTO Drake II CST454CEFG | 1000 grams | 1.28 | Tornado Flush (dual-nozzle) | 2-1/8" glazed | Comfort Height (16-1/8") | Best overall flush power | Check price |
| American Standard Champion 4 | 1000 grams | 1.28 | PowerWash rim | 2-3/8" glazed | Comfort Height (16-1/2") | Heavy use, families | Check price |
| Kohler Highline K-2998 | 1000 grams | 1.28 | Class Five (canister) | 2" glazed | Comfort Height (16-1/2") | Reliable all-around | Check price |
| Woodbridge T-0001 | 1000 grams | 1.28 | Dual flush (siphon) | 2-1/8" glazed | Comfort Height (16") | Budget-friendly 1000g | Check price |
| Gerber Viper 21-128 | 900 grams | 1.28 | Ultra Flush (siphon) | 2" glazed | Comfort Height (16-1/2") | Value pick | Check price |
Each of these models has been tested by map-testing.com and verified by thousands of owner reviews. The TOTO Drake II is widely considered the benchmark for flush performance, with its Tornado Flush system using two nozzles to create a centrifugal cleaning action. The American Standard Champion 4 is known for its large 2-3/8 inch glazed trapway, which reduces clog risk.
Expert Take
For the best combination of MaP score, water efficiency, and reliability, the TOTO Drake II is the top choice. Its 1000-gram MaP score and 1.28 GPF make it both powerful and efficient. The American Standard Champion 4 is a close second, especially for households that prioritize a larger trapway.
Top Pick
TOTO Drake II CST454CEFG
The TOTO Drake II offers the best overall flush performance with a 1000-gram MaP score and efficient 1.28 GPF.
Flush TypeTornado Flush
GPF1.28
MaP Score1000 grams
Trapway2-1/8" glazed
HeightComfort Height (16-1/8")
WarrantyLifetime (bowl), 5 years (mechanical)
Pros
- Industry-leading 1000-gram MaP score
- Very quiet flush operation
- Self-cleaning rim design
Cons
- Higher price point
- Requires specific TOTO seat for best fit
The TOTO Drake II uses the Tornado Flush system, which employs two nozzles to create a powerful centrifugal flush that cleans the entire bowl. This design eliminates the need for rim holes, reducing maintenance. The 2-1/8 inch glazed trapway ensures smooth waste passage and resists clogs.
Owner reviews consistently praise its flush power and quiet operation. Many users report never needing a plunger. The Comfort Height bowl is ADA-compliant and comfortable for adults. The Drake II is WaterSense certified and uses only 1.28 GPF, making it both powerful and efficient.
Expert Take
Check price on AmazonThe TOTO Drake II sets the standard for toilet flush performance. Its 1000-gram MaP score is backed by thousands of positive owner reviews and independent testing. If you want the most reliable flush in a residential toilet, this is the model to choose.
Bottom Line: The TOTO Drake II is the best choice for anyone who wants a toilet that flushes powerfully and quietly every time.
Runner Up
American Standard Champion 4
The American Standard Champion 4 matches the 1000-gram MaP score with a larger trapway for added clog resistance.
Flush TypePowerWash rim
GPF1.28
MaP Score1000 grams
Trapway2-3/8" glazed
HeightComfort Height (16-1/2")
WarrantyLifetime (bowl), 1 year (mechanical)
Pros
- Largest trapway in its class (2-3/8")
- Excellent value for performance
- Widely available
Cons
- Flush is slightly louder than TOTO
- Seat not included
The American Standard Champion 4 features a PowerWash rim that scrubs the bowl with each flush. Its 2-3/8 inch glazed trapway is one of the largest available, which helps prevent clogs. The toilet uses 1.28 GPF and is WaterSense certified.
Owner reviews highlight its reliable flush and value for money. Many users appreciate the large trapway that handles heavy waste without issues. The Champion 4 is a popular choice for families and high-traffic bathrooms.
Expert Take
Check price on AmazonThe American Standard Champion 4 is an excellent alternative to the TOTO Drake II, especially if you want a larger trapway. Its 1000-gram MaP score and lower price make it a great value for performance.
Bottom Line: The American Standard Champion 4 offers top-tier flush performance with a larger trapway at a competitive price.
Budget Pick
Woodbridge T-0001
The Woodbridge T-0001 delivers a 1000-gram MaP score at a budget-friendly price point.
Flush TypeDual flush (siphon)
GPF1.28 (full) / 0.8 (partial)
MaP Score1000 grams
Trapway2-1/8" glazed
HeightComfort Height (16")
WarrantyLifetime (bowl), 5 years (mechanical)
Pros
- Dual flush saves water
- Very affordable for 1000-gram score
- Modern, sleek design
Cons
- Dual flush mechanism can be finicky
- Not as widely available as major brands
The Woodbridge T-0001 is a dual-flush toilet that offers both a 1.28 GPF full flush and a 0.8 GPF partial flush. It achieves a MaP score of 1000 grams on the full flush, making it one of the most affordable toilets to reach this benchmark. The trapway is fully glazed for smooth waste passage.
Owner reviews note that the dual-flush mechanism saves water, but some users report occasional sticking of the flush buttons. Overall, the T-0001 provides excellent value for those on a budget who still want top-tier flush performance.
Expert Take
Check price on AmazonThe Woodbridge T-0001 is a smart choice for budget-conscious buyers who don't want to compromise on flush power. Its 1000-gram MaP score is impressive for the price, but be prepared for potential minor issues with the dual-flush mechanism.
Bottom Line: The Woodbridge T-0001 offers great flush performance at a low price, making it a solid budget option.
Frequently Asked Questions About MaP Scores
What is the highest MaP score for a toilet?
The highest MaP score commonly available for residential toilets is 1000 grams. Some commercial models may score higher, but 1000 grams is the standard benchmark for top residential performance.
Is a MaP score of 800 good?
Yes, a MaP score of 800 grams is considered good for light to moderate use. It is acceptable for guest bathrooms or low-traffic areas, but 1000 grams is recommended for primary bathrooms.
What MaP score does the TOTO Drake have?
The TOTO Drake (original) has a MaP score of 800 grams. The TOTO Drake II has a MaP score of 1000 grams.
What MaP score does the Kohler Highline have?
The Kohler Highline has a MaP score of 1000 grams, making it one of the top-performing toilets from Kohler.
What MaP score does the American Standard Champion 4 have?
The American Standard Champion 4 has a MaP score of 1000 grams, matching the top tier of residential toilets.
What MaP score does the Gerber Viper have?
The Gerber Viper has a MaP score of 900 grams, which is good for most residential applications but not the top tier.
What MaP score does the Woodbridge T-0001 have?
The Woodbridge T-0001 has a MaP score of 1000 grams on its full flush setting, making it a budget-friendly option for top performance.
What MaP score does the Swiss Madison St. Tropez have?
The Swiss Madison St. Tropez has a MaP score of 800 grams, which is acceptable for light to moderate use.
What MaP score does the Kohler Cimarron have?
The Kohler Cimarron has a MaP score of 1000 grams, suitable for most residential bathrooms.
What MaP score does the American Standard Cadet 3 have?
The American Standard Cadet 3 has a MaP score of 800 grams, offering reliable performance for standard use.
What MaP score does the TOTO UltraMax II have?
The TOTO UltraMax II has a MaP score of 1000 grams, providing excellent flush power in a one-piece design.
What MaP score does the Gerber Avalanche have?
The Gerber Avalanche has a MaP score of 900 grams, offering strong performance at a mid-range price.
What MaP score does the TOTO Aquia IV have?
The TOTO Aquia IV has a MaP score of 1000 grams, suitable for light to moderate use.
What MaP score does the Kohler Wellworth have?
The Kohler Wellworth has a MaP score of 800 grams, providing standard performance for most homes.
Sources
- EPA WaterSense, epa.gov/watersense
- MaP flush testing, map-testing.com
- Manufacturer published specifications
- Consumer Reports toilet flush test data
- Plumber surveys and professional recommendations
Our Verdict
For most households, a good MaP score is 1000 grams. This ensures reliable, clog-free flushing even with heavy use and toilet paper. The TOTO Drake II is the top choice for achieving this score with quiet, efficient operation. The American Standard Champion 4 is a close runner-up with a larger trapway. For budget buyers, the Woodbridge T-0001 offers the same 1000-gram score at a lower price. Always verify MaP scores from independent sources like map-testing.com before purchasing.
How we rank & our data sources
We do not run physical lab tests. Rankings are built from published, verifiable data and real owner feedback, never paid placement.
- MaP (Maximum Performance) flush scores
- EPA WaterSense certification & GPF ratings
- Manufacturer specifications (trapway size, flush-valve, rough-in)
- Verified owner reviews from Amazon, Home Depot & Lowe’s
Researched by Marcus Bell · Last updated July 4, 2026 · Our review method
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