How Many Oz Is a Water Bottle?

The short answer: a standard single-use water bottle holds about 16.9 oz (500 ml). Reusable bottles are most commonly 20 to 32 oz, and insulated tumblers come in 12, 20, 30 and 40 oz. The "right" size depends on whether it's for a desk, the gym or all-day carry.

Common drinkware sizes (oz ↔ ml)

US fluid ounces	Approximate millilitres	Typical product
8 oz	237 ml	Kids cup, espresso tumbler
12 oz	355 ml	Coffee cup, kids bottle
16 oz	473 ml	Pint tumbler, medium travel mug
16.9 oz	500 ml	Standard disposable water bottle
20 oz	590 ml	Travel mug, small tumbler
24 oz	710 ml	Sport / gym bottle
30 oz	890 ml	Large tumbler
32 oz	950 ml	Large reusable bottle
36 oz	1,065 ml	Oversize sport bottle
40 oz	1,180 ml	Handled quencher tumbler
64 oz	1,893 ml	Half-gallon jug

Quick conversion: 1 US fluid ounce ≈ 29.57 ml, so to go from oz to ml multiply by about 30; to go from ml to oz, divide by about 30.

Match the capacity to the use

Capacity is easier to choose alongside the drink, carrying space and lid. These bands give you starting points to compare with the models in the range.

12–16 oz (about 350–500ml): compare compact coffee cups and smaller bottles for a desk, gift or carrying brief. Actual base dimensions and lid style determine the fit.

17–20 oz (about 500–600ml): compare everyday water bottles with the intended bag pocket, carrying loop or holder dimensions.

24–32 oz (700–950 ml). Gym and outdoor territory. Fewer refills, still carryable without a handle.

40 oz (about 1.2L) and larger: consider the filled weight, handle, lid and base dimensions together. A sample helps you compare how the chosen model will be carried.

Keep units clear in the quote and listing

US fluid ounces and millilitres describe the same volume using different units. Mark approximate conversions clearly and keep the selected model’s stated capacity consistent across the quote and packing.

500ml is about 16.9 US fluid ounces. Show both units where helpful and agree the wording with the model information and artwork rather than treating rounded sizes as exact measurements.

Confirm the stated capacity and any recommended fill level for the chosen model. The lid and filling instructions can affect the usable space; keep that information with the care insert.

If you want several capacities, send the quantity for each. We can confirm the model, colour and decoration minimums and explain any separate tooling needed for a new size.

Which size should you choose?

Desk & commute

Compare about 500–600ml models with the actual cup-holder or bag-space dimensions.

Gym & sport

24–32 oz means fewer refills during a workout; pick a sport cap.

All-day hydration

Compare larger models with the filled weight, carrying needs and refill routine.

Coffee & tea

12–20 oz travel mugs match a typical hot-drink serving.

Buying rather than measuring? Insulated tumbler sizes maps the common oz sizes to real use cases, and our tumbler range lists what we make in each.

Compare the sizes with your audience and carrying brief. The capacity, opening and lid of each selected model give a useful reference for the range.

Custom tumblers (12–40 oz) ›Sport water bottles ›Vacuum thermos & bottles ›

Frequently asked questions

How many oz is a standard water bottle?▾

A standard single-use plastic water bottle holds about 16.9 oz, which is 500 ml. Reusable bottles are usually larger, commonly 20 to 32 oz.

How many oz is a typical reusable or sport bottle?▾

Reusable and sport bottles are most often 20 to 32 oz (about 590–950 ml). Gym users often choose 24–32 oz to cut down on refills.

What are the common tumbler sizes?▾

Common bands include 12, 20, 30 and 40 US fluid ounces. Choose the actual model and capacity around the drink, carrying needs and audience.

How do I convert oz to ml for a bottle?▾

Multiply ounces by about 29.57 to get millilitres (roughly ×30). So 20 oz ≈ 590 ml and 32 oz ≈ 950 ml.

How do common ounce and millilitre sizes compare?▾

Quick conversion: 1 US fluid ounce ≈ 29.57 ml, so to go from oz to ml multiply by about 30; to go from ml to oz, divide by about 30.

How should I match capacity to the intended use?▾

Capacity is easier to choose alongside the drink, carrying space and lid. These bands give you starting points to compare with the models in the range.

How many ml is a 16 oz, 16.9 oz, 20 oz, 24 oz, 30 oz or 40 oz water bottle?▾

In standard drinkware conversions: 16 oz is 473 ml (often 450–480 ml in factory moulds), 16.9 fl oz is 500 ml (standard half-litre bottle), 20 oz is 591 ml (600 ml), 24 oz is 710 ml (700–750 ml), 30 oz is 887 ml (900 ml tumbler), and 40 oz is 1183 ml (1200 ml handled tumbler). All capacities are available for custom bulk production from MOQ 500 pcs.

Which sales representative should I contact for samples, mock-ups or a quotation on this topic?▾

All four sales representatives — Beyond Lee, Miya Wu, Candy Tang and Shally Zhang — welcome global buyers in English and take part in our internal service competition to provide the most attentive follow-up. Choose Miya, Candy or Shally and Sales Manager Beyond Lee supervises the full order process from sample to shipment; choose Beyond Lee and a dedicated assistant works alongside him to co-follow your order. Each contact serves global buyers in English first and is also particularly familiar with specific order types and regional markets: Beyond Lee for custom development, logo options and new tooling; Miya Wu for supermarket, retail, online/FBA and brand orders (esp. Europe, Russia & CIS); Candy Tang for promotional gift campaigns and multi-item sets (esp. the US & Canada, Spain & Latin America, Oceania and select African markets); and Shally Zhang for volume orders, container scheduling and incoming accessory checks (esp. Brazil & Portugal, Southeast Asia and the Middle East).

B2B Factory Drinkware Specification & Sourcing Reference Matrix (MOQ 500 pcs)

Product Line	Core Material & Wall Structure	Standard MOQ	Custom Branding & Packing	Direct Factory Catalog
Vacuum Thermos & Insulated Bottles	SUS 304 (18/8) & SUS 316 Double-Wall Vacuum	500 pcs / model	Laser, 3D UV, Powder Coat, Retail/FBA Box	Thermos Catalog · Custom Guide
Travel Mugs, Coffee Cups & Tumblers	SUS 304/316 & Dongrui Inner Ceramic Coating	500 pcs / model	Silicone Grip, Flip/Straw Lid, Pantone Match	Travel Mugs · Ceramic Line
Sports, Shaker & BPA-Free Bottles	Eastman Tritan, PP, Single/Double-Wall SUS 304	500 pcs / model	Whisk Ball, Volume Scale, Screen/Heat Transfer	Shakers · BPA-Free · Fitness
Titanium, Bamboo, Glass & Gift Sets	99.9% Titanium, Natural Bamboo, Borosilicate Glass	500 pcs / sets	Permanent Laser Mark, Custom Gift Box & Inserts	Titanium · Bamboo · Start a Brand

Planning a drinkware order?

Share the model or product type, quantity, colours, logo and packing you have in mind. We’ll confirm the applicable minimum, sample plan and production schedule for that specific order, then help compare delivery options for your destination.

Your name *

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Order quantity *

Product category / model *

Global English Service Competition & Full-Process Supervision: All four representatives welcome enquiries in English from global buyers and compete on service quality. Choose Beyond Lee (co-followed with a dedicated assistant), Miya Wu (retail, brand & FBA; esp. Europe, Russia & CIS), Candy Tang (promotional gifts; esp. the US & Canada, Spain & Latin America, Oceania & select African markets), or Shally Zhang (volume orders; esp. Brazil & Portugal, Southeast Asia & the Middle East) — with Sales Manager Beyond Lee supervising the full order process from sample to shipment.

Preferred sales contact (optional — all 4 serve global buyers in English)

Your requirements

Written by the Jupeng Drinkware team — Yongkang, Zhejiang, China. Manufacturing drinkware since 1998. Contact Beyond: [email protected] | WhatsApp +86 156 5791 8881