Wedding Savings Calculator

How it works

A wedding is a large bill with a fixed date and a deposit schedule that starts long before the day itself. This calculator grows what you have already saved and solves for the monthly deposit that covers your budget by the wedding, assuming end-of-month deposits with interest compounded monthly:

• M — the monthly deposit you are solving for
• G — your wedding budget
• P — what you have already saved
• i — monthly interest rate (annual rate ÷ 12)
• n — number of months until the wedding

With the defaults, $3,000 already saved grows to about $3,249 over two years, leaving roughly $26,751 for deposits. About $1,072 a month reaches $30,000, with around $1,261 of it earned as interest while vendor deposits come due.

✓ Every result is checked against independent reference math. See how we test the calculators →

A worked example: a $30,000 wedding two years out

Maria and her partner are planning a $30,000 wedding two years out, and they have already tucked away $3,000. At a 4% expected return, the calculator says they need to set aside $1,072/month, or about $247 a week, to have the fund ready by July 2028.

Over 24 months those deposits add up to $25,739. The starting $3,000 and $1,261 in interest earned cover the rest, landing the balance right at $30,000. That interest is small here because two years is a short runway, so most of the work comes from the monthly deposit, not the market.

The return you assume nudges the number: parking the money in index funds at 7% drops it to $1,034/month, while cash at 0% pushes it to $1,125/month, a spread of $91. Plug in your date and budget to see your own monthly target.

Where the money actually goes

• The venue and catering lead. Together they often approach half the budget, so this is where trimming moves the total the most.
• Guest count is the real lever. Catering, rentals, and venue size all scale with headcount, so a shorter list quietly lowers nearly every other line.
• Mind the deposit schedule. Vendors booked 12 to 18 months out take deposits to hold your date, with balances due in the final weeks, so the fund is needed early.
• Keep it liquid. On a one-to-two-year timeline, high-yield savings protects the fund from a market dip right when a deposit is due.

Trimming the budget without dimming the day

A wedding budget has more give than it first appears, and most of the savings come from a handful of choices rather than nickel-and-diming every vendor. Because so many costs scale with the date and the headcount, a few deliberate decisions can lower the goal above by thousands while leaving the day itself feeling every bit as special. Start with the levers that move the most.

Small per-guest choices matter more than they look, because a dollar trimmed from each plate or favor multiplies across a long list, so trimming ten names can save more than dropping a whole category elsewhere.

• Pick an off-peak date. A winter month, a Friday, or a Sunday can cut venue and vendor prices sharply against a Saturday in peak season.
• Trim the guest list. Since catering, rentals, and venue size all track headcount, every name you cut lowers several lines at once.
• Rethink the bar. Beer, wine, and a signature cocktail cost far less than a full open bar, and many guests will not notice the difference.
• Look at all-in venues. A site that includes tables, chairs, linens, and catering can beat piecing rentals together from separate vendors.
• Prioritize two or three things. Spend where it matters most to you and keep the rest simple, rather than trying to make every detail top-tier.

Line up who is contributing

Weddings are often funded by more than one wallet, so before you commit to the monthly deposit it pays to know who is putting in what. Sorting the contributions early keeps the plan realistic and heads off the awkward surprises that arise when everyone assumes someone else is covering a line. The number this calculator shows should reflect only the share you are actually saving.

• Have the money talk first. Ask family directly and early whether they intend to help, and treat anything uncertain as your own responsibility until it is confirmed.
• Combine two savers. If you and your partner are both contributing, the monthly figure splits between you, which often makes a daunting goal feel manageable.
• Build the budget from priorities. Decide what the day must include before you settle on a total, so the number reflects your wedding rather than an average.
• Track the deposit schedule. Vendors want deposits long before the balance, so map when each payment falls and make sure the fund is ready for the early ones.
• Put every agreement in writing. Get contracts from each vendor and a clear note of who is contributing what, so a spoken promise does not quietly become your problem in the final month. Deposits are often non-refundable, so read the cancellation terms too, since a canceled date can otherwise cost you every deposit you have already paid.