Gas Optimization Quick Guide

Understanding Gas

Term	Meaning
Gas	Unit measuring computational work
Gas Limit	Maximum gas you'll pay for a transaction
Base Fee	Minimum fee set by network demand
Priority Fee (Tip)	Extra fee to prioritize your transaction
Gwei	Unit of gas price (1 ETH = 1 billion gwei)

Term

Meaning

Gas

Unit measuring computational work

Gas Limit

Maximum gas you'll pay for a transaction

Base Fee

Minimum fee set by network demand

Priority Fee (Tip)

Extra fee to prioritize your transaction

Gwei

Unit of gas price (1 ETH = 1 billion gwei)

Best Times to Transact

Time Period	Gas Level	Best For
Weekends (Sat-Sun)	Lowest	Large transactions, non-urgent
Weekday nights (US time)	Low	Standard transactions
Weekday mornings (US)	Medium	If needed, acceptable
Weekday afternoons (US)	High	Urgent only
Market volatility events	Very High	Avoid if possible

Time Period

Gas Level

Best For

Weekends (Sat-Sun)

Lowest

Large transactions, non-urgent

Weekday nights (US time)

Low

Standard transactions

Weekday mornings (US)

Medium

If needed, acceptable

Weekday afternoons (US)

High

Urgent only

Market volatility events

Very High

Avoid if possible

Pro Tip: Check etherscan.io/gastracker before any transaction. Wait for base fee under 20 gwei for big savings.

Gas-Saving Strategies

1. Use Layer 2 Networks

Move to L2s for 90%+ gas savings:

Arbitrum: ~$0.10-0.50 per swap
Optimism: ~$0.10-0.50 per swap
Polygon: ~$0.01-0.05 per swap
Base: ~$0.05-0.20 per swap

Potential Savings: 90-99%

2. Batch Transactions

Combine multiple actions into one transaction when possible:

Use DEX aggregators that batch swaps
Claim multiple rewards at once if protocol supports it
Use Zapper/Zerion to "zap" into LP positions

Potential Savings: 20-50%

3. Set Alerts for Low Gas

Get notified when gas drops:

Blocknative Gas Estimator
ETH Gas Station alerts
Telegram gas bots

Potential Savings: 30-70%

4. Revoke Unused Approvals

Revoking costs gas, but batch revokes when gas is cheap to:

Improve security
Reduce future transaction costs slightly

Use: revoke.cash

5. Use Gasless Transactions

Some services don't require gas from you:

1inch Limit Orders: Gasless order placement
CoW Swap: Gasless swaps
Matcha: Gasless limit orders

Potential Savings: 100% on placement

Typical Gas Costs by Action

Action	Gas Used	At 20 gwei	At 50 gwei
ETH Transfer	21,000	~$1	~$2.50
ERC-20 Transfer	65,000	~$3	~$8
Token Approval	45,000	~$2	~$5
Uniswap Swap	150,000	~$7	~$18
Add LP (v3)	300,000	~$14	~$35
Claim Rewards	100,000	~$5	~$12

Action

Gas Used

At 20 gwei

At 50 gwei

ETH Transfer

21,000

~$1

~$2.50

ERC-20 Transfer

65,000

~$3

~$8

Token Approval

45,000

~$2

~$5

Uniswap Swap

150,000

~$7

~$18

Add LP (v3)

300,000

~$14

~$35

Claim Rewards

100,000

~$5

~$12

Gas Tracking Tools

Tool	URL	Features
Etherscan Gas Tracker	etherscan.io/gastracker	Real-time gas prices, history
Blocknative	blocknative.com	Gas estimator, predictions
ETH Gas Station	ethgasstation.info	Gas prices, alerts
Ultrasound Money	ultrasound.money	Gas burn tracking

Tool

URL

Features

Etherscan Gas Tracker

etherscan.io/gastracker

Real-time gas prices, history

Blocknative

blocknative.com

Gas estimator, predictions

ETH Gas Station

ethgasstation.info

Gas prices, alerts

Ultrasound Money

ultrasound.money

Gas burn tracking

Quick Reference: Should I Wait?

Current Base Fee	Action
<15 gwei	Go! Excellent gas price
15-25 gwei	Good - proceed if needed
25-40 gwei	Moderate - wait if not urgent
40-80 gwei	High - wait unless necessary
>80 gwei	Very High - only for emergencies

Current Base Fee

Action

<15 gwei

Go! Excellent gas price

15-25 gwei

Good - proceed if needed

25-40 gwei

Moderate - wait if not urgent

40-80 gwei

High - wait unless necessary

>80 gwei

Very High - only for emergencies

Remember: The best gas optimization is using Layer 2s. Move your regular trading to Arbitrum or Optimism and save 90%+ on every transaction.